Entity Address, Address Line One Amendment Flag Entity Address, City or Town Current Fiscal Year End Date Document Period End Date Entity Incorporation, State or Country Code Entity Address, Postal Zip Code Entity Address, State or Province 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 Tax Identification Number Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Document Type Entity Interactive Data Current Entity Shell Company Entity Emerging Growth Company Entity Ex Transition Period Entity Small Business ASC 842 [Member] Accounting Standards Update 2016-02 [Member] Accounts payable Accrued liabilities Income taxes payable Fixed assets, accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated Other Comprehensive Income [Member] AOCI Attributable to Parent [Member] Accumulated other comprehensive loss, net of tax Additional paid-in capital Additional Paid-in Capital [Member] Relinquishment of stock options and deferred stock units to pay withholding taxes Adjustments to reconcile net income to net cash provided by operating activities: Adjustments for New Accounting Pronouncements [Axis] Share-based compensation expense Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Antidilutive Securities [Axis] Anti-dilutive securities excluded from computation of earnings per dilutive share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities, Name [Domain] Assets: Leases [Abstract] Assets and Liabilities, Lessee [Abstract] Total assets Assets Total current assets Assets, Current Current assets: Total noncurrent assets Assets, Noncurrent Basis of accounting Basis of Accounting, Policy [Policy Text Block] Basis of presentation Business Description and Basis of Presentation [Text Block] Capital expenditures included in accounts payable Cash Flows Related to Operating Leases Cash Flow, Operating Activities, Lessee [Abstract] Cash and cash equivalents Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Decrease in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Class of Treasury Stock [Table] Stock repurchase program [Abstract] Class of Stock Disclosures [Abstract] Common Stock [Member] Common stock, shares authorized (in shares) Common stock, par value (in dollars per share) Dividends declared and paid per common share (in dollars per share) Common stock, shares issued (in shares) Common stock, shares outstanding (in shares) Common stock, $0.01 par value, 20,000,000 shares authorized; 11,500,502 and 11,463,141 shares issued, respectively; 7,455,660 and 7,418,299 shares outstanding, respectively Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Revenue recognized Contract with Customer, Liability, Revenue Recognized Deferred revenue, net of current portion Deferred revenue, non-current Contract liabilities [Abstract] Contract with Customer, Liability [Abstract] Total contract liabilities Contract with Customer, Liability Deferred revenue Deferred revenue, current Contract liabilities Contract with Customer, Asset and Liability [Table Text Block] Cost of sales Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Table] Disaggregation of revenue [Abstract] Disaggregation of revenue Disaggregation of Revenue [Table Text Block] Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Axis] Deferred stock units [Abstract] Deferred Compensation Arrangements [Abstract] Deferred stock units issued for incentive bonus (in shares) Deferred Compensation Arrangement with Individual, Shares Issued Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] Deferred Stock Units [Member] Deferred Compensation, Share-based Payments [Member] Deferred rent, net of current portion Deferred income taxes Deferred tax assets Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Depreciation and amortization Dividends, date paid Dividends Payable, Date to be Paid Dividends, date of record Dividends Payable, Date of Record Dividends [Abstract] Dividends declared and paid on common stock Dividends, Common Stock, Cash Earnings per share [Abstract] Earnings Per Share Reconciliation [Abstract] Shares used in per-share calculation: Net income per common share [Abstract] Net income per common share: Earnings per share Basic (in dollars per share) Diluted (in dollars per share) Earnings Per Share, Diluted Earnings per share [Abstract] Effect of exchange rate changes on cash and cash equivalents U.S. corporate income tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Effective tax rate Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Domain] Equity Component [Domain] Equity, Class of Treasury Stock [Line Items] Withholding taxes paid on stock issuances 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 Warranties issued Extended Product Warranty Accrual, Increase for Warranties Issued Accrued product warranty liability, non-current Extended Product Warranty Accrual, Noncurrent Balance, end of period Balance, beginning of period Extended Product Warranty Accrual Warranty [Abstract] Extended Product Warranty Disclosure [Abstract] Warranty settlements Extended Product Warranty Accrual, Decrease for Payments Accrued product warranty liability, current Intangible assets, accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Foreign currency transaction gains Foreign Currency Transaction Gain (Loss), before Tax Foreign currency translation Foreign Currency Transactions and Translations Policy [Policy Text Block] Gain on the sale of fixed assets Gain (Loss) on Disposition of Property Plant Equipment General and administrative Goodwill Gross profit Gross Profit Income taxes [Abstract] Income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest CONDENSED CONSOLIDATED STATEMENTS OF INCOME (unaudited) [Abstract] Income tax provision Income tax provision Income taxes [Abstract] Income Tax Expense (Benefit), Continuing Operations [Abstract] Income taxes Accrued liabilities and other liabilities Prepaid income taxes Increase (Decrease) in Prepaid Taxes Accounts payable Increase (Decrease) in Accounts Payable Inventories Increase (Decrease) in Inventories Accounts receivable Increase (Decrease) in Receivables Changes in operating assets and liabilities: Other current and long term assets Increase (Decrease) in Other Operating Assets Increase (Decrease) in Stockholders' Equity [Roll Forward] Add: Dilutive effect of outstanding options and restricted stock units as determined by the treasury stock method (in shares) Intangible assets, net of accumulated amortization of $3,542, and $3,487, respectively Interest, net Inventories, net Inventory Disclosure [Text Block] Inventories, net [Abstract] Finished goods Inventories, net Inventories, net Raw materials and purchased component parts Work-in-process Leases [Abstract] Lessee Disclosure [Abstract] 2022 Leases Lessee, Operating Leases [Text Block] Maturity of Operating Lease Liabilities Lessee, Operating Lease, Liability, Maturity [Table Text Block] 2020 Lessee, Lease, Description [Line Items] Less imputed interest 2023 Lessee, Lease, Description [Table] Total undiscounted lease payments Lessee, Operating Lease, Liability, Payments, Due 2019 Operating Lease Weighted Average Remaining Lease Term and Discount Rate [Abstract] Lessee, Operating Lease, Description [Abstract] 2021 Thereafter Leases [Abstract] Legal fees associated with lawsuit (Note 7) Liabilities and Shareholders' Equity: Total liabilities Liabilities Total liabilities and shareholders' equity Liabilities and Equity Total noncurrent liabilities Liabilities, Noncurrent Current liabilities: Total current liabilities Liabilities, Current Accrued product warranty liability [Roll Forward] Cash flows from financing activities: Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from investing activities: Cash flows from operating activities: Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Net income Net income Net Income (Loss) Attributable to Parent New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Table] Interest and other income (expense) Nonoperating Income (Expense) Interest and other income (expense): Nonoperating Income (Expense) [Abstract] 2019 Operating Leases, Future Minimum Payments Due, Next Twelve Months Total undiscounted rental commitments Operating Leases, Future Minimum Payments Due Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Future Minimum Rental Commitments Under Non-Cancelable Operating Leases [Abstract] Total lease liabilities Operating Lease, Liability Right-of-use asset Right-of-use asset, net of accumulated amortization of $211 and $0 Operating Lease, Right-of-Use Asset Operating lease expense Operating Lease, Expense Operating cash flows from leases Operating Lease, Payments Maturity of Operating Lease Liabilities [Abstract] Operating Lease Liabilities, Payments Due [Abstract] Operating Lease, Liability, Current Operating income Operating Income (Loss) Operating expenses: Operating expenses Operating Expenses Weighted average remaining lease term Operating Lease, Weighted Average Remaining Lease Term Lease liability Operating Lease, Liability, Noncurrent 2022 Operating Leases, Future Minimum Payments, Due in Four Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter 2021 Operating Leases, Future Minimum Payments, Due in Three Years 2023 Operating Leases, Future Minimum Payments, Due in Five Years 2020 Operating Leases, Future Minimum Payments, Due in Two Years Foreign currency translation adjustment, net of tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Other assets Other current assets Other liabilities Other, net Purchases of common stock for treasury Payments for Repurchase of Common Stock Payment of dividends on common stock Payment of dividend on common stock Capital expenditures Payments to Acquire Property, Plant, and Equipment Additions to capitalized software Payments to Acquire Software Prepaid income taxes Revolving credit line borrowings Proceeds from sale of fixed assets Proceeds from stock option exercises Product Warranty Liability [Line Items] Product Warranty Liability [Table] Accrued product warranty liability Accrued product warranty liability [Abstract] Fixed assets, net of accumulated depreciation of $20,660 and $20,518, respectively Accounts receivable, net Revolving credit line payments Repayments of Lines of Credit Engineering, design and product development Retained earnings Retained Earnings [Member] Net sales Total net sales Revenue from Contract with Customer, Excluding Assessed Tax Revenue [Abstract] Remaining performance obligations Revenue, Remaining Performance Obligation, Amount Revenue Revenue from Contract with Customer [Text Block] Expected timing of satisfaction, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Remaining performance obligations [Abstract] Revenue, Performance Obligation [Abstract] Inventories, net Schedule of Inventory, Current [Table Text Block] Earnings per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Product warranty liability Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Deferred Compensation Arrangement with Individual, Share-based Payments [Table] Selling and marketing Share Repurchase Program [Axis] Share Repurchase Program [Domain] Share-based compensation expense Relinquishment of stock awards to pay withholding taxes (in shares) Shares Paid for Tax Withholding for Share Based Compensation CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) [Abstract] CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) [Abstract] Statement [Line Items] Statement [Table] CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) [Abstract] Equity Components [Axis] CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY [Abstract] Stock Awards [Member] Stock Compensation Plan [Member] Authorized value of common stock to be repurchased Issuance of shares from stock awards (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Issuance of shares from exercise of stock options Stock Issued, Value, Stock Options Exercised, Net of Tax Benefit (Expense) Supplemental share information Stock Transactions, Parenthetical Disclosures [Abstract] Value of common stock repurchased Common stock repurchased (in shares) Purchase of treasury stock (in shares) Shareholders' equity Total shareholders' equity Ending balance Beginning balance Stockholders' Equity Attributable to Parent Shareholders' equity: Shareholders' equity [Abstract] Supplemental schedule of non-cash investing activities: Relationship to Entity [Domain] Title of Individual [Axis] Purchase of treasury stock Treasury Stock, Value, Acquired, Cost Method Treasury Stock [Member] Average purchase price of common stock repurchased (in dollars per share) Treasury Stock Acquired, Average Cost Per Share Treasury stock, at cost, 4,044,842 shares Treasury Stock, Value Treasury stock (in shares) Type of Adoption [Domain] Unrecognized tax benefits that would favorably affect effective income tax rate if recognized Unrecognized Tax Benefits that Would Impact Effective Tax Rate Unrecognized tax benefits that will lapse upon expiration of statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Accrued interest and penalties related to uncertain tax positions Basic: Weighted average common shares outstanding (in shares) Basic (in shares) Diluted: Weighted average common and common equivalent shares outstanding (in shares) Diluted (in shares) Shares [Abstract] Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Maximum [Member] Minimum [Member] Product and Service [Domain] Product and Service [Axis] Range [Domain] Range [Axis] Geographical [Domain] Geographical [Axis] United States [Member] Right of Use Asset Lease Liabilities Document and Entity Information [Abstract] Accumulated amount of amortization of lessee's right to use underlying asset under operating lease. Operating Lease, Right-of-Use Asset, Accumulated Amortization Right-of-use asset, accumulated amortization 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 Schedule that describes and identifies income tax disclosure. Income Tax Disclosure [Table] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Income Tax Disclosure [Line Items] Basis of presentation [Abstract] 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] Stock Repurchase Program [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] Other countries outside of the United States. International [Member] Revenue from sales of terminals that combine hardware and software in a device that includes an operating system, touchscreen and one or two thermal print mechanisms that print easy-to-read food rotation labels, grab and go labels for prepared foods, and "enjoy by" date labels to help food service establishments and restaurants (including fine dining, casual dining, quick-serve convenience and hospitality establishments) effectively manage food safety and automate and manage back-of-the-restaurant operations. Restaurant Solutions [Member] Restaurant Solutions [Member] Revenue from sales of thermal printers used primarily by restaurants (including fine dining, casual dining, quick serve and hospitality establishments) located either at the checkout counter or within self-service kiosks to print receipts for consumers or print on linerless labels. POS Automation and Banking [Member] POS Automation and Banking [Member] Revenue from sales of thermal ticket printers used in slot machines, video lottery terminals, and other gaming machines that print tickets or receipts instead of issuing coins at casinos and racetracks and other gaming venues worldwide. Casino and Gaming [Member] Casino and Gaming [Member] Revenue from sales of thermal on-line and other lottery printers primarily to International Game Technology and its subsidiaries ("IGT") and, to a lesser extent, other lottery system companies for various lottery applications. Lottery [Member] Lottery [Member] Revenue from sales of branded printers wide format, desktop and rack mounted and vehicle mounted black/white thermal printers used by customers to log and plot oil field, seismic and down hole well drilling data in the oil and gas exploration industry. Printrex [Member] Printrex [Member] Revenue from range of supplies and consumables used in the printing and scanning activities of customers in the restaurant and hospitality, banking, retail, casino and gaming, government and oil and gas exploration markets. TransAct Services Group [Member] TransAct Services Group [Member] Amount of obligation to transfer good or service to customer related to customer prepayments for which consideration has been received or is receivable, classified as current. Contract with Customer, Liability for Customer Prepayments, Current Customer pre-payments Remaining term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Lessee, Operating Lease, Remaining Term of Contract Remaining lease terms Term of lessee's option to extend operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Lessee, Operating Lease, Option to Extend Term Extension period for leases Term of lessee's option to terminate the operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Lessee, Operating Lease, Option to Terminate Term Termination period for leases Tabular disclosure of information related to lessee's operating leases. Lessee, Operating Lease, Description [Table Text Block] Operating Lease Weighted Average Remaining Lease Term and Discount Rate Tabular disclosure of supplemental information for the statement of cash flows related to operating leases. Lessee, Operating Lease, Supplemental Disclosure for Cash Flows [Table Text Block] Cash Flows for Operating Leases