Document and Entity Information [Abstract] Document and Entity Information Document Type Amendment Flag Document Period End Date Document Fiscal Year Focus Document Fiscal Period Focus Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Current Reporting Status Entity Filer Category Trading Symbol Entity Common Stock, Shares Outstanding Entity Small Business Entity Emerging Growth Company Entity Shell Company CONDENSED CONSOLIDATED BALANCE SHEETS Statement [Table] Statement [Table] Statement [Line Items] Statement [Line Items] Assets [Abstract] Assets Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Cash and cash equivalents at beginning of period Cash and cash equivalents Accounts Receivable, Net, Current Accounts receivable (net of allowance for doubtful accounts of $15,000 in 2019 and 2018) Inventory, Net Inventories, net Inventories, net Other Assets, Current Other current assets Assets, Current Total current assets Property, Plant and Equipment, Net [Abstract] Plant and equipment: Property, Plant and Equipment, Gross Plant and equipment, at cost Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Less: Accumulated depreciation and amortization Property, Plant and Equipment, Net Total plant and equipment Inventory, Noncurrent Precious metals Finite-Lived Intangible Assets, Net Intangible assets, net Operating Lease, Right-of-Use Asset Lease Right-of-Use Other Assets, Noncurrent Other assets Assets Total Assets Liabilities and Equity [Abstract] Liabilities and Shareholders' Equity Liabilities, Current [Abstract] Current liabilities: Other Notes Payable, Current Less current portion Current portion of other long term notes Accounts Payable and Accrued Liabilities, Current Accounts payable and accrued liabilities Amount of Contract liabilities on the balance sheet. Contract Liabilities Contract liabilities Operating Lease, Liability, Current Current portion of Lease Obligation Liabilities, Current Total current liabilities Notes Payable, Related Parties, Noncurrent Related party convertible notes payable Other Notes Payable, Noncurrent Other long term Notes, net of current portion Long-term debt, excluding current portion Operating Lease, Liability, Noncurrent Lease obligation, net of current portion Liabilities Total liabilities Commitments and Contingencies Commitments Stockholders' Equity Attributable to Parent [Abstract] Shareholders' equity: Common Stock, Value, Issued Common stock: $.01 par value; 60,000,000 authorized shares; 13,735,177 shares issued at June 30, 2019, and 13,636,988 shares issued at December 31, 2018 Additional Paid in Capital, Common Stock Capital in excess of par value Retained Earnings (Accumulated Deficit) Accumulated deficit Stockholders' Equity before Treasury Stock Stockholders' Equity before Treasury Stock Treasury Stock, Value Less - Common stock in treasury, at cost (4,600 shares) Stockholders' Equity Attributable to Parent Balance Balance Total shareholders' equity Liabilities and Equity Total Liabilities and shareholders' equity Allowance for Doubtful Accounts Receivable Allowance for doubtful accounts (in dollars) Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Treasury Stock, Shares Treasury stock, shares CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS Revenues Total revenue Costs and Expenses [Abstract] Cost and expenses: Cost of Goods and Services Sold Cost of goods sold Selling, General and Administrative Expense Selling, general and administrative expenses Costs and Expenses Costs and Expenses, Total Operating Income (Loss) Income (loss) from operations Nonoperating Income (Expense) [Abstract] Other expense: Interest Income (Expense), Nonoperating, Net Interest expense-net Gain (Loss) on Disposition of Other Assets (Gain) loss on exchange of precious metals Loss on exchange of precious metals Nonoperating Income (Expense) Nonoperating Income (Expense) Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Income (loss) before income taxes Income Tax Expense (Benefit) Income tax (provision) benefit Net Income (Loss) Attributable to Parent Net income (loss) for the year Net income (loss) Net income (loss) Earnings Per Share, Basic Net (loss) income per common share - basic Earnings Per Share, Diluted Net (loss) income per common share - diluted Weighted Average Number of Shares Outstanding, Basic Weighted average shares outstanding - basic Weighted Average Number of Shares Outstanding, Basic Weighted Average Number of Shares Outstanding, Diluted Weighted average shares outstanding - diluted CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock [Member] Common Stock Capital In Excess Of Par Value [Member] Capital in excess of par value Accumulated Deficit [Member] Accumulated Deficit Treasury Stock [Member] Treasury Stock Shares, Outstanding Balance (in shares) Balance (in shares) Stock Issued During Period, Value, New Issues 401K contribution Stock Issued During Period, Shares, New Issues 401K contribution (in shares) Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Stock-based compensation expense CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities Depreciation, Depletion and Amortization Depreciation and amortization Pension and Other Postretirement Benefits Cost (Reversal of Cost) 401K common stock contribution - non cash item Share-based Compensation Stock based compensation Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Increase (Decrease) in Accounts Receivable Accounts receivable Increase (Decrease) in Inventories Inventories, net Increase (Decrease) in Prepaid Expense and Other Assets Other current assets Increase (Decrease) in Other Operating Assets Other assets Increase (Decrease) in Accounts Payable and Accrued Liabilities Accounts payable and accrued liabilities Increase (Decrease) in Contract with Customer, Liability Contract liabilities Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities Total adjustments and changes Net Cash Provided by (Used in) Operating Activities Net cash (used in) operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from investing activities: Payments to Acquire Property, Plant, and Equipment Capital expenditures Payments to Acquire Other Productive Assets Purchase of precious metals Net Cash Provided by (Used in) Investing Activities Net cash (used in) investing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Cash flows from financing activities: Repayments of Other Long-term Debt Principal payments on notes payable-other Net Cash Provided by (Used in) Financing Activities Net cash (used in) financing activities Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Net (decrease) in cash and cash equivalents Supplemental Cash Flow Information [Abstract] Supplemental disclosure of cash flow information: Interest Paid, Net Interest paid Income Taxes Paid, Net Income taxes paid Other Noncash Investing and Financing Items [Abstract] Significant non-cash activities: Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Lease right-of-use asset SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES REVENUE Revenue from Contract with Customer [Text Block] REVENUE EQUITY COMPENSATION PROGRAM AND STOCK BASED COMPENSATION Disclosure of Compensation Related Costs, Share-based Payments [Text Block] EQUITY COMPENSATION PROGRAM AND STOCK BASED COMPENSATION STOCKHOLDERS' EQUITY Stockholders' Equity Note Disclosure [Text Block] STOCKHOLDERS' EQUITY RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] RELATED PARTY TRANSACTIONS OTHER LONG TERM NOTES Other Liabilities Disclosure [Text Block] OTHER LONG TERM NOTES LEASE AMENDMENT Lessee, Operating Leases [Text Block] LEASE AMENDMENT Basis of Accounting, Policy [Policy Text Block] Basis of Presentation Use of Estimates, Policy [Policy Text Block] Management Estimates Trade and Other Accounts Receivable, Policy [Policy Text Block] Accounts Receivable Inventory, Policy [Policy Text Block] Inventories Income Tax, Policy [Policy Text Block] Income Taxes Earnings Per Share, Policy [Policy Text Block] Net Income (Loss) per Common Share Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Stock-Based Compensation New Accounting Pronouncements, Policy [Policy Text Block] Recently Adopted Accounting Standards Schedule of Inventory, Current [Table Text Block] Schedule of Inventory, Current The tabular disclosure of reconciliation of the shares used in the calculation of basic and diluted earnings per common share. Schedule Of Reconciliation Of Shares Used In Calculation Of Basic And Diluted Earnings Per Common Share [Table Text Block] Schedule Of Reconciliation Of Shares Used In Calculation Of Basic And Diluted Earnings Per Common Share Disaggregation of Revenue [Table Text Block] Schedule of Disaggregation of Revenue Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of Share-based Compensation, Stock Options, Activity Tabular disclosure of the total compensation cost related to non-vested stock options granted, vested and forfeited during the period. Share Based Compensation Arrangement By Share Based Payment Award Options Non Vested [Table Text Block] Schedule of Share Based Compensation Arrangement By Share Based Payment Award Options Non Vested Schedule of Debt [Table Text Block] Schedule of Debt Lessee, Operating Lease, Liability, Maturity [Table Text Block] Schedule of operating lease liability The tabular disclosure of other information regarding lessee, operating lease. Lessee Operating Lease Other Information [Table Text Block] Schedule of other information Inventory, Current [Table] Inventory [Line Items] Inventory, Raw Materials, Gross Raw materials Inventory, Work in Process, Gross Work in process, including manufactured parts and components Inventory, Finished Goods, Gross Finished goods Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Income(Loss) (Numerator) Net Income (Loss) Available to Common Stockholders, Basic Net Income (Loss) Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Convertible Securities Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Convertible Securities Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise of dilutive accrued interest on convertible notes. Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Accrued Interest On Convertible Notes Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Accrued Interest On Convertible Notes Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise of dilutive warrants. Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Warrants Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units Net Income (Loss) Attributable to Parent, Diluted [Abstract] Diluted Income (Loss) Per Share: Net Income (Loss) Attributable to Parent, Diluted Net Income (Loss) Weighted Average Number of Shares Outstanding, Basic [Abstract] Shares (Denominator) Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of accrued interest on convertible notes. Incremental Common Shares Attributable to Dilutive Effect of Accrued Interest On Convertible Notes Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted Average Number of Shares Outstanding, Diluted [Abstract] Diluted Income (Loss) Per Share: Earnings Per Share, Basic [Abstract] Basic Income (Loss) Per Share: Earnings Per Share, Diluted [Abstract] Diluted Income (Loss) Per Share: Amount of The amount of net income (loss) for the period available to earning per share diluted, conversion notes. Earnings Per Share Diluted, Conversion Notes Earnings per share diluted, conversion notes Amount of The amount of net income (loss) for the period available to earning per share diluted, accrued interest on convertible notes. Earnings Per Share Diluted, Accrued Interest On Convertible Notes Earnings per Share diluted, accrued interest on convertible notes Amount of The amount of net income (loss) for the period available to earning per share diluted, warrants Earnings Per Share Diluted, Warrants Earnings per share diluted, warrants Amount of The amount of net income (loss) for the period available to earning per share diluted, warrants Earnings Per Share Diluted, Stock Options Earnings per share diluted, stock options Summary of Significant Accounting Policies [Table] Antidilutive Securities [Axis] Antidilutive Securities Name [Domain] Antidilutive Securities, Name [Domain] Warrant [Member] Warrant [Member] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Selling Expense [Member] Selling Expense [Member] Nature Of Business And Operations And Summary Of Significant Accounting Policies And Estimates [Line Items] Provision for Doubtful Accounts Deferred Tax Assets, Valuation Allowance Inventory Valuation Reserves Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Operating Lease, Liability Present value of operating lease liability Disaggregation of Revenue [Table] Segments [Axis] Segment [Domain] Segments [Domain] Aerospace Defense [Member] Aerospace & Defense [Member] Process Control Metrology [Member] Process Control & Metrology [Member] Laser Systems [Member] Laser Systems [Member] Scientific Rd [Member] Scientific / R&D [Member] Timing of Transfer of Good or Service [Axis] Timing Of Transfer Of Good Or Service [Domain] Timing of Transfer of Good or Service [Domain] Transferred At Point In Time [Member] Transferred at Point in Time [Member] Transferred Over Time [Member] Transferred over Time [Member] Disaggregation of Revenue [Line Items]