Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entities [Table] Entities [Table] Entity Information [Line Items] Entity Information [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Current Reporting Status Entity Current Reporting Status Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding CONSOLIDATED CONDENSED BALANCE SHEETS Statement [Table] Statement [Table] Statement [Table] Statement [Line Items] Statement [Line Items] Assets [Abstract] ASSETS Assets, Current [Abstract] Current assets: Cash Cash Receivables, Net, Current Trade receivables, net Inventory, Net Inventories Inventories Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Current Property held for sale Assets, Current Assets, Current Buildings and Improvements, Gross Leasehold improvements Machinery and Equipment, Gross Equipment Property, Plant and Equipment, Gross Property, Plant and Equipment, Gross, Total Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Less accumulated depreciation Property, Plant and Equipment, Net Property, plant and equipment, net Deferred Tax Assets, Net, Noncurrent Deferred income taxes Other Assets, Noncurrent Other assets Assets Total Assets Liabilities and Equity [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities, Current [Abstract] Current liabilities: Less current installments Current maturities of long-term debt Accounts Payable, Current Trade accounts payable Accrued Liabilities, Current Accrued liabilities Customer Advances, Current Customer deposits Liabilities, Current Liabilities, Current Long-term Debt, Excluding Current Maturities Long-term debt, less current maturities Long-term debt, excluding current installments CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY Stockholders' equity: Common Stock, Value, Issued Common stock; par value $0.01; 6,000,000 shares authorized; 5,995,750 shares issued and outstanding Additional Paid in Capital, Common Stock Capital in excess of par value Retained Earnings (Accumulated Deficit) Accumulated deficit Stockholders' Equity Attributable to Parent Stockholders' Equity Liabilities and Equity Total Liabilities and Stockholders' Equity Common stock, par value Common stock, par value Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Common Stock, Shares, Outstanding Balance end of year (in shares) Balance beginning of year (in shares) Common stock, shares outstanding CONSOLIDATED STATEMENTS OF OPERATIONS Sales Revenue, Goods, Net Net sales Cost of Goods Sold Cost of goods sold Gross Profit Gross profit Operating Expenses [Abstract] Operating expenses: Engineering Expenses not related to research and development costs. Engineering Expense Engineering Selling, General and Administrative Expense Selling, general and administrative Operating Expenses Operating expenses Operating Income (Loss) Earnings (loss) from operations Nonoperating Income (Expense) [Abstract] Other expense: Interest Expense, Debt Interest expense, net Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Earnings (loss) before provision (credit) for income taxes Income Tax Expense (Benefit) Provision (benefit) for income taxes Net Income (Loss) Attributable to Parent Net earnings (loss) Net earnings (loss) Earnings Per Share, Basic Basic earnings (loss) per share CONSOLIDATED STATEMENTS OF CASH FLOWS Cash flows from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net earnings (loss) to net cash provided by operating activities: Amount of amortization of stock compensation costs recognized in the income statement. Amortization Of Stock Compensation Costs Stock compensation cost amortized Depreciation Depreciation Increase (Decrease) in Deferred Income Taxes Deferred income taxes Increase (decrease) in cash flows from operations resulting from changes in: Increase (Decrease) in Receivables Trade receivables Increase (Decrease) in Inventories Inventories Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other assets Increase (Decrease) in Accounts Payable Trade accounts payable Increase (Decrease) in Accrued Liabilities Accrued liabilities Increase (Decrease) in Customer Deposits Customer deposits Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash provided by operating activities Cash flows from investing activities: Payments to Acquire Property, Plant, and Equipment Capital expenditures Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash used in investing activities Cash flows from financing activities: Repayments of Long-term Debt Principal payments on long-term debt Proceeds from Lines of Credit Proceeds from line of credit Repayments of Long-term Capital Lease Obligations Payments on capital lease obligations Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash provided by (used in) financing activities Cash and Cash Equivalents, Period Increase (Decrease) Net decrease in cash Cash and Cash Equivalents, at Carrying Value Cash, end of period Cash, beginning of period Supplemental Cash Flow Information [Abstract] Cash paid during the year for: Interest Paid Interest Income Taxes Paid Income taxes Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Non-cash investing and financing activities: Non cash transactions from capital leases. Noncash Transactions Proceeds From Capital Leases Equipment financed with proceeds from capital lease BASIS OF PRESENTATION Basis of Presentation and Significant Accounting Policies [Text Block] BASIS OF PRESENTATION Nature of Operations [Abstract] NATURE OF OPERATIONS Nature of Operations [Text Block] NATURE OF OPERATIONS INVENTORIES Inventory Disclosure [Text Block] INVENTORIES FINANCING AGREEMENTS Debt Disclosure [Text Block] FINANCING AGREEMENTS INCOME TAXES Income Tax Disclosure [Text Block] INCOME TAXES Restricted Stock [Abstract] RESTRICTED STOCK AGREEMENTS The entire disclosure of restricted stock agreements used to compensate key employees. Disclosure Of Restricted Stock Agreements [Textblock] RESTRICTED STOCK AGREEMENTS STOCKHOLDERS' EQUITY Stockholders' Equity Note Disclosure [Text Block] STOCKHOLDERS' EQUITY EARNINGS PER SHARE Earnings Per Share [Text Block] EARNINGS PER SHARE CUSTOMER DEPOSITS The entire disclosure for customer deposits, including their nature and amount. Customer Deposits Disclosure [Textblock] CUSTOMER DEPOSITS Credit Risk [Abstract] CONCENTRATIONS OF CREDIT RISK Concentration Risk Disclosure [Text Block] CONCENTRATIONS OF CREDIT RISK COMMITMENTS AND CONTINGENCIES. Commitments and Contingencies Disclosure [Text Block] COMMITMENTS AND CONTINGENCIES Schedule of Inventory, Current [Table Text Block] Table summarizing the components of inventories Schedule of Debt [Table Text Block] Summary of the notes within the financing agreement Schedule of Line of Credit Facilities [Table Text Block] Schedule of letter of credit outstanding balance Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Summary of restricted stock activity Schedule of Common Stock Outstanding Roll Forward [Table Text Block] Summary of changes in shares of common stock outstanding Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table Text Block] Computation of earnings per common share Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Future minimum lease payments under non-cancellable operating leases Inventory, Raw Materials, Net of Reserves Raw materials Inventory, Work in Process, Net of Reserves Work in process Inventory, Finished Goods, Net of Reserves Finished goods Schedule of Long-term Debt Instruments [Table] Debt Instrument [Axis] Debt Instrument Name [Domain] Debt Instrument, Name [Domain] Equipment Financing Note 4.05 Percent Due January 2019 Equipment Financing Note4.05 Percent Due January2019 [Member] Note payable 4.05 percent Refers to working capital line of credit at 4.00 percent with a maturity date of March 2018. Working Capital Line Of Credit4.00 Percent Due March2018 [Member] Working line of credit 4.00 percent Refers to building line of credit at 4.00 percent with a maturity date of March 31, 2018. Building Line Of Credit4.00 Percent Due March2018 [Member] Building line of credit 4.00 percent Information pertaining to note payable at 4.75 percent due in May 2018 under equipment financing line of credit. Equipment Financing Note4.75 Percent Due May2018 [Member] Note payable 4.75 percent Information pertaining to note payable at 3.75 percent due in April 2018 under equipment financing line of credit. Equipment Financing Note3.75 Percent Due April2018 [Member] Note payable 3.75 percent Information pertaining to note payable at 4.05 percent due in January 2020 under equipment financing line of credit. Equipment Financing Note4.05 Percent Due January2020 [Member] Note payable 4.05 percent Refers to line of credit to be used for equipment purchases. Equipment Line Of Credit [Member] Equipment line of credit Long-term Debt, Type [Axis] Longterm Debt Type [Domain] Long-term Debt, Type [Domain] Mortgages [Member] Mortgage note payable Line Of Credit [Member] Line of Credit Notes Payable To Banks [Member] Note Payable Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Prime Rate [Member] Prime Rate Debt Instrument [Line Items] Long-term indebtedness Long-term Debt Total long-term debt Refers to the number of agreements. Number Of Agreements Number of agreements Notes Payable Debt Instrument, Interest Rate, Stated Percentage Rate Debt Instrument, Periodic Payment Monthly installments Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid Final payment Proceeds from Notes Payable Proceeds Received Amount of prepayment allowed per year for the financing agreement that does not generate a prepayment penalty. Periodic Prepayment Limit For Financing Agreement Annual prepayment limit Line of Credit Facility, Maximum Borrowing Capacity Maximum borrowing Maximum borrowing capacity under equipment financing credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Equipment Financing Line Of Credit Facility Maximum Borrowing Capacity Equipment financing maximum borrowing Debt Instrument, Face Amount Principal amount Line of Credit Facility, Periodic Payment Amount of Reduction Long-term Line of Credit Balance of Letter of Credit Refers to financing agreement that requires a ratio of EBITDA (as defined in the financing agreement) to fixed charge coverage (as defined in the financing agreement). Ratio Of EBITDA To Fixed Charge Coverage Ratio of EBITDA to fixed charge coverage Accrued interest or penalties related to uncertain tax positions Expected change in the amount of unrecognized tax benefit, accrued interest or penalties within the next twelve months Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Refers to 2016 Restricted Stock Grants. Restricted Stock Grants2016 [Member] 2016 Restricted Stock Grants Represents information pertaining to Stock Award Plan. Stock Award Plan [Member] Stock Award Plan Award Type [Axis] Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Award Type [Domain] Restricted Stock [Member] Restricted Stock Title of Individual [Axis] Title Of Individual With Relationship To Entity [Domain] Relationship to Entity [Domain] Represents information pertaining to three key employees of the reporting entity. Three Key Employees [Member] Three Key Employees Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award The number of employees receiving award under the equity-based compensation plan. Share Based Compensation Arrangement By Share Based Payment Award Number Of Employees Receiving Award Under Plan Number of key employees receiving award under plan Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Aggregate amount of restricted stock awards authorized The period awards granted under equity-based compensation plan are restricted for for sale, assignment, or pledge, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Share Based Compensation Arrangement By Share Based Payment Award Restriction Period Restriction period of awards Represents the annual growth in revenue as a percentage. Share Based Compensation Arrangement By Share Based Payment Award Cumulative Annual Growth In Revenue Cumulative annual growth in revenue (as a percentage) Refers to the average economic value added as a percentage of revenue. Share Based Compensation Arrangement By Share Based Payment Award Average Economic Value Added As A Percentage Of Revenue Average economic value added as percentage of revenue (as a percentage) Represents the number of shares expected to be reverted to treasury shares during the fiscal year. Number Of Shares Expected To Be Reverted To Treasury Shares During Fiscal Year Number of shares expected to revert during fiscal year Restricted Stock or Unit Expense Stock compensation cost amortized Restricted Shares Under Option Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Outstanding at end of period Outstanding at beginning of period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Forfeited Weighted Average Grant Price Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Outstanding at end of period, Weighted Average Grant Price (in dollars per share) Outstanding at beginning of period, Weighted Average Grant Price (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Granted, Weighted Average Grant Price (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Forfeited, Weighted Average Grant Price (in dollars per share) Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity Stock Issued During Period, Shares, Treasury Stock Reissued Shares released from treasury for restricted stock grants Stock Issued During Period, Shares, Restricted Stock Award, Gross Newly issued shares for restricted stock grants Stock Issued During Period, Shares, Restricted Stock Award, Forfeited Shares reverted to treasury for restricted stock forfeitures Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Amounts allocated to participating securities (nonvested restricted shares) Net Income (Loss) Available to Common Stockholders, Basic Net income attributable to common shareholders Weighted Average Number of Shares Outstanding, Basic Basic weighted average common shares Earnings Per Share, Basic [Abstract] Earnings per share attributable to common shareholders: