Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income (Loss)	$ 7,154	$ (1,546)
Adjustments to Reconcile Net Loss to Net Cash Provided by Operating Activities:
Depreciation	1,774	2,002
Amortization	176	191
Compensation on Stock-Based Awards	111	68
Compensation on Equity Appreciation Rights	143	108
Loss on Abandonment of Intangible Asset	560	0
Loss on Goodwill Impairment	0	2,375
Change in Accounts Receivable Allowance	(15)	8
Change in Inventory Reserves	(860)	672
Gain on Disposal of Property and Equipment	(141)	(3,821)
PPP Loan Forgiveness Gain	(6,171)	0
Employee Retention Credit Receivable	(5,209)	0
Changes in Current Operating Items
Accounts Receivable	1,134	3,019
Inventories	(4,613)	(216)
Contract Assets	(2,799)	1,760
Prepaid Expenses and other Curent Assets	(171)	651
Income Taxes	634	(675)
Accounts Payable	1,471	(2,950)
Accrued Payroll and Commissions	1,176	(623)
Other Accrued Liabilities	1,106	340
Net Cash (Used In) Provided by Operating Activities	(4,540)	1,363
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from Sale of Property and Equipment	626	6,019
Purchase of Intangible Asset	(64)	(34)
Purchases of Property and Equipment	(1,292)	(485)
Net Cash (Used In) Provided By Investing Activities	(730)	5,500
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Line of Credit	5,688	(6,760)
Proceeds from Long-Term Debt	0	6,077
Principal Payments on Long-Term Debt	(1,128)	(2,684)
Principal Payments on Financing Leases	(664)	(592)
Stock Option Excercises	35	0
Net Cash Provided By (Used In) Financing Activities	3,931	(3,959)
Effect of Exchange Rate Changes on Cash	0	0
Net Change in Cash and Cash Equivalents	(1,339)	2,904
Cash and Cash Equivalents - Beginning of Year	3,564	660
Cash and Cash Equivalents - End of Year	2,225	3,564
Reconciliation of cash and restricted cash reported within the consolidated balance sheets
Cash	643	352
Restricted Cash	1,582	3,212
Total Cash and restricted cash reported in the consolidated statements of cash flows	2,225	3,564
Cash Paid for Interest	316	577
Cash Paid (Refunded) for Income Taxes	(114)	855
Supplemental Noncash Investing and Financing Activities:
Property and Equipment Purchases in Accounts Payable	35	175
Property Acquired under Operating Lease	1,188	4,999
Equipment Acquired under Finance Lease	368	395
PPP Loan Forgiveness	$ 6,171	$ 0