Amendment Flag
Current Fiscal Year End Date
Document Period End Date
Entity Well-known Seasoned Issuer
Entity Voluntary Filers
Entity Current Reporting Status
Entity Filer Category
Entity Public Float
Entity Registrant Name
Entity Central Index Key
Entity Common Stock, Shares Outstanding
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Type
Award Type [Axis]
Summary of significant accounting policies [Abstract]
Accrued liabilities
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
Accounts Receivable [Member]
Accounts payable
Allowance for doubtful accounts [Abstract]
Income taxes payable
Accrued liabilities
Accrued liabilities
Professional and consulting
Treasury stock, 3,851,967 and 3,388,589 shares, at cost
Less: Accumulated depreciation and amortization
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Accumulated Other Comprehensive Income (Loss) [Member]
AOCI Attributable to Parent [Member]
Additional paid-in capital
Additional Paid-in Capital [Member]
Relinquishments of stock options and deferred stock units to pay withholding taxes
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Share-based compensation expense
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition
Issuance of deferred stock units
Advertising expense
Advertising
Share-based compensation expense
Allocated Share-based Compensation Expense
Allowance for doubtful accounts [Roll Forward]
Balance, end of period
Balance, beginning of period
Allowance for Doubtful Accounts Receivable, Current
Write-offs
Allowance for Doubtful Accounts Receivable, Write-offs
Amortization expense
Antidilutive Securities [Axis]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities, Name [Domain]
Anti-dilutive securities excluded from computation of earnings per dilutive share (in shares)
Assets:
Total assets
Assets
Current assets:
Total noncurrent assets
Assets, Noncurrent
Total current assets
Assets, Current
Accounting policies
Non-cash capital expenditure items
Capitalized computer software, amortization
Capitalized Computer Software, Amortization
Unamortized development costs of software
Cash and cash equivalents
Cash and Cash Equivalents, Policy [Policy Text Block]
Cash and cash equivalents
Cash and cash equivalents, end of period
Cash and cash equivalents, beginning of period
Increase (decrease) in cash and cash equivalents
Cash and Cash Equivalents, Period Increase (Decrease)
Class of Stock [Domain]
Class of Treasury Stock [Table]
Stock repurchase program [Abstract]
Class of Stock Disclosures [Abstract]
Commitments and contingencies
Commitments and Contingencies Disclosure [Text Block]
Commitments and contingencies (Note 10)
Commitments and Contingencies
Commitments and contingencies [Abstract]
Common Stock [Member]
Common stock, shares authorized (in shares)
Common stock, shares issued (in shares)
Ending balance (in shares)
Beginning balance (in shares)
Dividends declared and paid per common share (in dollars per share)
Common stock, par value (in dollars per share)
Common Stock, Value, Issued
Common stock, shares outstanding (in shares)
Retirement savings plan [Abstract]
Retirement savings plan
Deferred income tax components [Abstract]
Comprehensive income (loss)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Concentration Risk Benchmark [Axis]
Concentration Risk [Line Items]
Concentration of credit risk
Concentration Risk [Table]
Concentration Risk Benchmark [Domain]
Concentration risk percentage
Concentration Risk, Percentage
Principles of consolidation
Consolidation Items [Axis]
Consolidation Items [Domain]
Construction in-Process [Member]
Cost of sales
Credit Facility [Domain]
Credit Facility [Axis]
Income taxes current
Current Income Tax Expense (Benefit)
State
Current State and Local Tax Expense (Benefit)
Foreign
Current Foreign Tax Expense (Benefit)
Current [Abstract]
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal
Current Federal Tax Expense (Benefit)
Customer Relationships [Member]
Basis spread on variable rate
Borrowings
Term of credit facility
Debt Instrument, Term
Borrowings [Abstract]
Maturity date
Deferred tax liabilities [Abstract]
ASU 2016-09 Adjustment
Deferred Tax Expense from Stock Options Exercised
Deferred compensation expense
Deferred Compensation Arrangement with Individual, Compensation Expense
Term of award
Deferred Compensation Arrangement with Individual, Maximum Contractual Term
Weighted average exercise price of deferred stock units (in dollars per share)
Deferred Compensation Arrangement with Individual, Exercise Price
Restricted stock [Abstract]
Deferred Compensation Arrangements [Abstract]
Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Axis]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred stock units issued for incentive bonus (in shares)
Deferred Compensation Arrangement with Individual, Shares Issued
Restricted Stock [Member]
Deferred Compensation, Share-based Payments [Member]
Foreign
Deferred financing costs
Federal
Deferred income tax provision (benefit)
Income taxes deferred
Deferred [Abstract]
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Deferred revenue, net of current portion
Deferred revenue
Deferred rent, net of current portion
State
Foreign tax and other credits
Other liabilities and reserves
Inventory reserves
Total net deferred tax assets
Deferred Tax Assets, Net
Gross deferred tax assets
Deferred Tax Assets, Gross
Deferred tax assets
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent
Net deferred tax assets
Deferred Tax Assets, Net of Valuation Allowance
Deferred tax assets [Abstract]
Deferred Tax Assets, Net [Abstract]
Deferred revenue
Deferred Tax Assets, Deferred Income
Deferred tax assets
Foreign net operating losses
Depreciation
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Legal Settlements
Other accrued compensation
Warranty reserve
Valuation allowance
Deferred Tax Assets, Valuation Allowance
Stock compensation expense
Depreciation
Deferred Tax Liabilities, Property, Plant and Equipment
Net deferred tax liabilities
Deferred Tax Liabilities, Net
Other
Deferred Tax Liabilities, Other
Employee's contribution percentage for match
Employer matching contribution percentage
Amount of matching contribution
Depreciation and amortization
Depreciation, Depletion and Amortization, Nonproduction
Depreciation expense
Stock incentive plans [Abstract]
Stock incentive plans
Dividends declared and paid on common stock
Dividends, Common Stock, Cash
Federal [Member]
Europe [Member]
Diluted (in dollars per share)
Earnings Per Share, Diluted
Earnings per share
Net income (loss) per common share:
Earnings Per Share, Basic and Diluted [Abstract]
Shares used in per-share calculation:
Earnings per share [Abstract]
Earnings Per Share Reconciliation [Abstract]
Basic (in dollars per share)
Net income and loss per share
Earnings per share [Abstract]
Effect of exchange rate changes on cash and cash equivalents
State income taxes, net of federal income taxes
U.S. corporate tax rate change
Federal statutory tax rate
Uncertain tax positions
Effective Income Tax Rate Reconciliation, Tax Contingency, Percent
R&D credit
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent
Valuation allowance and tax accruals
Miscellaneous permanent items
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent
Other
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent
Stock option cancellations
Effective tax rate reconciliation [Abstract]
Effective tax rate
Effective Income Tax Rate Reconciliation, Percent
Unrecognized compensation cost related to stock options
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options
Employee Service Share-based Compensation, Tax Benefit from Exercise of Stock Options
Stock Options [Member]
Income tax benefit from share-based compensation expense
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense
Weighted average period to recognize compensation cost not yet recognized
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition
Salaries and compensation related
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock repurchase program [Abstract]
Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Domain]
Equity Component [Domain]
Equity, Class of Treasury Stock [Line Items]
Incremental tax benefits from stock options exercised
Excess Tax Benefit from Share-based Compensation, Financing Activities
Incremental tax benefits from stock options exercised
Excess Tax Benefit from Share-based Compensation, Operating Activities
Warranty [Abstract]
Extended Product Warranty Disclosure [Abstract]
Balance, end of period
Balance, beginning of period
Extended Product Warranty Accrual
Accrued product warranty liability, current
Warranty
Accrued product warranty liability, long-term
Warranty settlements
Extended Product Warranty Accrual, Decrease for Payments
Warranties issued
Extended Product Warranty Accrual, Increase for Warranties Issued
2016
Finite-Lived Intangible Assets [Line Items]
2020
Identifiable intangible assets [Abstract]
Intangible assets, accumulated amortization
Accumulated amortization
Finite-Lived Intangible Assets, Accumulated Amortization
2021
Finite-Lived Intangible Assets by Major Class [Axis]
Future amortization expense [Abstract]
2018
2019
Gross amount
2017
Finite-Lived Intangible Assets, Major Class Name [Domain]
Foreign currency transaction (gains) losses
Foreign Currency Transaction Gain (Loss), before Tax
Foreign currency translation
(Gain) loss on sale of fixed assets
Gain (Loss) on Disposition of Property Plant Equipment
Litigation settlement [Abstract]
General and Administrative Expense [Member]
General and administrative
Goodwill
Goodwill and Intangible assets
Intangible assets [Abstract]
Gross profit
Gross profit
Income taxes [Abstract]
Foreign loss before taxes
Income Statement Location [Axis]
Income Tax Authority [Axis]
Income (loss) before income taxes
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
Income Statement Location [Domain]
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Income taxes
Income Tax Authority [Domain]
Components of income tax provision [Abstract]
Accrued interest and penalties related to uncertain tax positions
Income tax provision (benefit)
Income tax (benefit) provision
Income taxes [Abstract]
Income Tax Expense (Benefit), Continuing Operations, by Jurisdiction [Abstract]
Prepaid income taxes
Income taxes paid
Federal research and development credits
Income taxes
Income Tax, Policy [Policy Text Block]
Accrued liabilities and other liabilities
Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities
Accounts payable
Increase (Decrease) in Accounts Payable
Prepaid income taxes
Increase (Decrease) in Income Taxes Receivable
Changes in operating assets and liabilities:
Other current and long term assets
Increase (Decrease) in Other Operating Assets
Inventories
Increase (Decrease) in Inventories
Accounts receivable
Increase (Decrease) in Receivables
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Add: Dilutive effect of outstanding options as determined by the treasury stock method (in shares)
Intangible assets, net of accumulated amortization of $2,779 and $2,326, respectively
Intangible assets
Interest expense
Interest Expense
Interest income
Interest paid
Inventories
Inventory Disclosure [Text Block]
Finished goods
Inventories
Inventories
Inventories [Abstract]
Work-in-process
Raw materials and purchased component parts
Inventories
Inventory, Policy [Policy Text Block]
Leases
Rent expense under operating leases
Leasehold Improvements [Member]
Total liabilities and shareholders' equity
Liabilities and Equity
Total liabilities
Liabilities
Liabilities and Shareholders' Equity:
Total current liabilities
Liabilities, Current
Current liabilities:
Total noncurrent liabilities
Liabilities, Noncurrent
Line of Credit Facility [Table]
Line of Credit Facility [Line Items]
Credit Facility [Abstract]
Lender Name [Axis]
Percentage fee on unused borrowings
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage
Maximum borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Undrawn commitments
Line of Credit Facility, Lender [Domain]
Accrued lawsuit settlement expenses (Note 10)
Litigation Case [Domain]
Litigation Status [Axis]
Litigation Case [Axis]
Litigation Status [Domain]
Legal fees and settlement expenses associated with lawsuit (Note 10)
Settlement expenses associated with lawsuit
Loss Contingency Nature [Axis]
Loss Contingencies [Table]
Loss Contingencies [Line Items]
Loss Contingency, Nature [Domain]
Tooling, Machinery and Equipment [Member]
Machinery and Equipment [Member]
Customer [Axis]
Advertising [Abstract]
Maximum [Member]
Minimum [Member]
Valuation allowance [Roll Forward]
Accrued product warranty liability [Roll Forward]
Customer [Domain]
Description of business
Net cash used in financing activities
Net Cash Provided by (Used in) Financing Activities
Cash flows from financing activities:
Cash flows from investing activities:
Cash flows from operating activities:
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Net income (loss)
Net income (loss)
Accounting pronouncements
Accounting pronouncements [Abstract]
Covenant Not to Compete [Member]
Number of business segments
Number of operating segments
Operating expenses:
Thereafter
2017
Operating Leases, Future Minimum Payments, Due in Two Years
Future minimum rental payments under operating leases [Abstract]
2016
Operating Leases, Future Minimum Payments Due, Next Twelve Months
2020
Operating Leases, Future Minimum Payments, Due in Five Years
2019
Operating Leases, Future Minimum Payments, Due in Four Years
Operating income (loss)
Operating Income (Loss)
Operating expenses
Operating Expenses
2018
Operating Leases, Future Minimum Payments, Due in Three Years
Operating Leased Assets [Line Items]
Net operating loss carryforward
Operating Loss Carryforwards [Table]
Operating Loss Carryforwards [Line Items]
Rent expense under operating leases [Abstract]
Operating Leases, Rent Expense, Net [Abstract]
Foreign currency translation adjustment, net of tax
Foreign currency translation adjustment, net of tax
Other [Member]
Other assets
Other current assets
Other liabilities
Other
Other, net
Prime Rate [Member]
Patents [Member]
Accrued liabilities [Abstract]
Payment for litigation settlement
Payment of dividends on common stock
Payments of Ordinary Dividends, Common Stock
Purchases of common stock for treasury
Payments for Repurchase of Equity
Payment of deferred financing costs
Payments of Financing Costs
Capital expenditures
Payments to Acquire Property, Plant, and Equipment
Additions to capitalized software
Payments for Software
Plan Name [Axis]
Plan Name [Domain]
Preferred stock par value (in dollars per share)
Preferred Stock, Value, Issued
Preferred stock, shares issued (in shares)
Preferred stock, shares outstanding (in shares)
Preferred stock, shares authorized (in shares)
Revolving credit line borrowings
Proceeds from stock option exercises
Cash received from exercise of stock options
Proceeds from sale of fixed assets
Product Warranty Liability [Table]
Product Warranty Liability [Line Items]
Fixed assets
Property, Plant and Equipment, Policy [Policy Text Block]
Components of fixed assets
Fixed assets, net [Abstract]
Property, Plant and Equipment, Net [Abstract]
Fixed assets [Abstract]
Fixed assets [Abstract]
Fixed assets, net
Fixed assets, net
Fixed assets
Property, Plant and Equipment, Gross
Fixed assets
Fixed assets [Abstract]
Property, Plant and Equipment, Net, by Type [Abstract]
Property, Plant and Equipment [Line Items]
Estimated useful life
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Domain]
Additions charged to costs and expenses
Provision for Doubtful Accounts
Quarterly results of operations (unaudited)
Quarterly results of operations (unaudited) [Abstract]
Reportable Geographical Components [Member]
Range [Domain]
Range [Axis]
Allowance for doubtful accounts
Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block]
Accounts receivable, net
Unrecognized tax benefits [Roll Forward]
Revolving credit line payments
Repayments of Lines of Credit
Engineering, design and product development [Abstract]
Research and Development Expense [Abstract]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Engineering, design and product development
Research and Development Expense, Policy [Policy Text Block]
R&D Credit [Member]
Engineering, design and product development
Research and development expense
Restricted Stock Units (RSUs) [Member]
Retained earnings
Retained Earnings [Member]
Revenue recognition
Revenues from External Customers and Long-Lived Assets [Line Items]
Revolving Credit Facility [Member]
Settled Litigation [Member]
Options vested or expected to vest
Term of award
Expected option term
Weighted average fair value of stock option grants (in dollars per share)
Fair value of all awards vested
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value
Options exercisable, end of period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Options exercisable, end of period
Outstanding, end of period
Net sales [Abstract]
Revenue, Net [Abstract]
Net sales
Sales [Member]
Stock option activity
Deferred tax assets and liabilities
Earnings per share
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Schedule of Operating Leased Assets [Table]
Schedule of Finite-Lived Intangible Assets [Table]
Allowance for doubtful accounts
Effective tax rate reconciliation
Components of inventories
Product warranty liability
Identifiable intangible assets
Schedule of Revenues from External Customers and Long-Lived Assets [Table]
Net sales and fixed assets by geographic area
Assumptions used in option valuation calculations
Quarterly results of operations
Quarterly Financial Information [Table Text Block]
Components of income tax provision
Components of accrued liabilities
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Schedule of Deferred Compensation Arrangement with Individual, Share-based Payments [Table]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table]
Property, Plant and Equipment [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Research and Development Arrangement, Contract to Perform for Others [Table]
Concentration of risk
Geographic area information
Segment reporting
Segment reporting [Abstract]
Geographic area information [Abstract]
Geographical [Domain]
Selling and marketing
Series A Preferred Stock [Member]
Share Repurchase Program [Domain]
Share-based compensation [Abstract]
Stock incentive plans [Abstract]
Share-based Arrangements with Employees and Nonemployees [Abstract]
Share Repurchase Program [Axis]
Exercised (in dollars per share)
Share-based compensation expense
Vesting period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average exercise price [Abstract]
Expired (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price
Forfeited (in dollars per share)
Granted (in dollars per share)
Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross
Options exercisable, end of period (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
Dividend yield
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Expected volatility
Risk-free interest rate
Assumptions used in valuation model [Abstract]
Number of shares available for grant (in shares)
Options exercisable, end of period (in dollars per share)
Number of shares authorized (in shares)
Intrinsic value of stock options exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value
Outstanding, end of period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
Options vested or expected to vest (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number
Outstanding, end of period (in dollars per share)
Outstanding, beginning of period (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Options vested or expected to vest
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value
Forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
Outstanding, beginning of period (in shares)
Outstanding, end of period (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Options vested or expected to vest (in dollars per share)
Number of shares [Roll Forward]
Expired (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period
Equity Award [Domain]
Share-based payments
Warranty
Standard Product Warranty, Policy [Policy Text Block]
State [Member]
State and Local Jurisdiction [Member]
Class of Stock [Axis]
Statement [Line Items]
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY [Abstract]
Geographical [Axis]
CONSOLIDATED STATEMENTS OF CASH FLOWS [Abstract]
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) [Abstract]
CONSOLIDATED BALANCE SHEETS [Abstract]
Statement [Table]
Equity Components [Axis]
Exercised (in shares)
Issuance of shares from exercise of stock options (in shares)
Authorized value of common stock to be repurchased
Issuance of common stock on deferred stock units, net of relinquishments (in shares)
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures
Stock Options, Restricted Shares and Deferred Stock Units [Member]
Stock Compensation Plan [Member]
Issuance of common stock on deferred stock units, net of relinquishments
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures
Issuance of shares from exercise of stock options
Stock Issued, Value, Stock Options Exercised, Net of Tax Benefit (Expense)
Value of common stock repurchased
Common stock repurchased (in shares)
Purchase of treasury stock (in shares)
Total shareholders' equity
Balance at December 31, 2017
Beginning balance
Stockholders' Equity Attributable to Parent
Shareholders' equity:
Subsequent event [Abstract]
Subsequent Event Type [Domain]
Subsequent Event Type [Axis]
Subsequent event
Subsequent Event [Line Items]
Subsequent Event [Table]
Subsequent Event [Member]
Valuation allowance on deferred tax assets
Unrecognized tax benefits
Summary of Positions for which Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Table Text Block]
Supplemental cash flow information:
Tax Credit Carryforward, Name [Domain]
Tax credit carryforward
Tax Credit Carryforward [Axis]
Purchased Technology [Member]
Relationship to Entity [Domain]
Title of Individual [Axis]
Tooling [Member]
Trademarks [Member]
Treasury stock, 3,388,589 and 3,222,036 shares, at cost
Treasury Stock, Value
Stock repurchase program
Treasury Stock [Member]
Treasury stock (in shares)
Purchase of treasury stock
Treasury Stock, Value, Acquired, Cost Method
Average purchase price of common stock repurchased (in dollars per share)
Treasury Stock Acquired, Average Cost Per Share
Reduction in tax liabilities for unrecognized tax benefits
Tax positions taken during the current period
Lapse of statute of limitations
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations
Unrecognized tax benefits, beginning of period
Unrecognized tax benefits, end of period
Unrecognized Tax Benefits
Use of estimates
Additions charged to income tax provision
Balance, beginning of period
Balance, end of period
Valuation Allowances and Reserves, Balance
Valuation Allowances and Reserves [Domain]
Valuation and Qualifying Accounts Disclosure [Table]
Foreign Net Operating Loss Carryforwards [Member]
Valuation Allowances and Reserves Type [Axis]
Valuation and Qualifying Accounts Disclosure [Line Items]
Reductions credited to income tax provision
Valuation Allowances and Reserves, Deductions
Variable Rate [Domain]
Variable Rate [Axis]
Basic (in shares)
Basic: Weighted average common shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Basic
Diluted (in shares)
Diluted: Weighted average common and common equivalent shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Shares [Abstract]
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Canada [Member]
CANADA
United States [Member]
Stock repurchase program which authorized the repurchase of up to $7,500,000 of outstanding shares of common stock from time to time in the open market, depending on market conditions, share price and other factors. The program started on August 11, 2014 and expired on July 31, 2015.
Stock Repurchase Program [Member]
Stock Repurchase Program [Member]
New stock repurchase program approved by the Board of Directors on February 25, 2016, which authorizes the repurchase of up to $5,000,000 of outstanding shares of common stock from time to time in the open market through December 31, 2017, depending on market conditions, share price and other factors.
New Stock Repurchase Program [Member]
New Stock Repurchase Program [Member]
Interest and other income (expense):
The amount of interest income and other income (expense) recognized during the period.
Interest and Other Income (Expense)
Interest and other income (expense)
Document and Entity Information [Abstract]
The increase (decrease) during the reporting period in the aggregate amount of lawsuit settlement expenses.
Increase (Decrease) in Accrued Lawsuit Settlement Expenses
Accrued lawsuit settlement expenses
The estimated exercise prices of options granted equals percentage of fair market value of common stock at the date of grant.
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Prices Of Options Granted Equals Percentage Of Fair Market Value Of Common Stock
Exercise prices of options granted equals percentage of fair market value of common stock
The number of stock incentive plans previously maintained and expired.
Share-based Compensation Arrangement by Share-based Payment Award, Number of stock incentive plans previously maintained and expired
Number of stock incentive plans previously maintained and expired
Stock incentive plan which provides for awards to executives, key employees, directors and consultants.
Equity Incentive Plan 2014 [Member]
2014 Equity Incentive Plan [Member]
The number of primary stock incentive plans.
Share-based Compensation Arrangement by Share-based Payment Award, Number of primary stock incentive plans
Number of primary stock incentive plans
Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding restricted stock units that are fully vested and expected to vest. Includes, but is not limited to, unvested restricted stock units for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.
Share-based Compensation Arrangements by Share-based Payment Award, Options and Restricted Stock Units, Vested and Expected to Vest [Table Text Block]
Equity awards vested and expected to vest
Equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities and Tangible personal property used in an office setting. Examples include, but are not limited to, computers, copiers and fax machine.
Furniture and Office Equipment [Member]
Furniture and Office Equipment [Member]
Internally developed software for sale, licensing or long-term internal use and tangible personal property used to produce goods and services.
Computer Software and Equipment [Member]
Computer Software and Equipment [Member]
Fixed assets excluding construction in-process. Includes tooling, machinery and equipment, furniture and office equipment, computer software and equipment, and leasehold improvements.
Fixed Assets, Excluding Construction in-Process [Member]
Fixed Assets, Excluding Construction in-Process [Member]
Description of business [Abstract]
Complaint alleging misappropriation of unspecified trade secrets and confidential information related to the design of the Company's food safety terminals.
Misappropriation of Unspecified Trade Secrets and Confidential Information [Member]
Qualification of certain labels for use on the Company's food safety terminals.
Qualification of Certain Labels for Use on Food Safety Terminals [Member]
TD Bank, N.A. (TD Bank) is a member of TD Bank Group and a subsidiary of The Toronto-Dominion Bank of Toronto, Canada.
TD Bank, N.A. [Member]
TD Bank [Member]
Civil complaint filed by Avery Dennison Corporation (AD) against the Company and a former employee of the Company alleging that the Company and former employee misappropriated unspecified trade secrets and confidential information from AD related to the design of the Company's food safety terminals.
Civil Complaint filed by Avery Dennison Corporation [Member]
Tangible personal property used to produce goods and services and fixed property, principally land and buildings.
Equipment and Real Property [Member]
Equipment and Real Property [Member]
Amount of revolving credit loans that can be used to fund future cash dividend payments or treasury share buybacks.
Line of Credit Facility, Loans Used to Fund Future Cash Dividend Payments or Treasury Share Buybacks
Loans used to fund future cash dividend payments or treasury share buybacks
Geographic area surrounding the edges of the Pacific Ocean. The Pacific Rim covers the western shores of North America and South America, in addition to Australia, eastern Asia and the islands of the Pacific.
Pacific Rim [Member]
Pacific Rim [Member]
Other countries outside of the United States.
International [Member]
The extended warranty period on company products, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
Extended Product Warranty Period
Product warranty period
Refers to the weighted-average amortization period of unamortized capitalized software developments costs.
Weighted Average Amortization Period of Unamortized Capitalized Software
Weighted-average amortization period of unamortized capitalized software
Major Customers and Concentration of Credit Risk [Abstract]
Concentration of credit risk [Abstract]
Refers to company's customer.
Suzo Happ [Member]
Suzo-Happ [Member]
Refers to company's customer.
CMC Daymark [Member]
Refers to company's customer.
Panasonic [Member]
Refers to company's customer.
IGT [Member]
Refers to company's customer.
Eurocoin [Member]
Options, Weighted-Average Remaining Contractual Term [Abstract]
Weighted average remaining contractual term [Abstract]
Options, Aggregate Intrinsic Value [Abstract]
Aggregate intrinsic value [Abstract]
Stock incentive plans which provide for awards to executives, key employees, directors and consultants.
Equity Incentive Plan 2005 and Equity Incentive Plan 2014 [Member]
2005 Equity Incentive Plan and 2014 Equity Incentive Plan [Member]
The chief executive officer (CEO) is the highest ranking executive officer, who has ultimate managerial responsibility for the entity and who reports to the board of directors. In addition, the CEO may also be the chairman of the board or president. The chief financial officer (CFO) is a senior executive officer responsible for overseeing the financial activities of the entity.
Chief Executive Officer and Chief Financial Officer [Member]
CEO and CFO [Member]