Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	$ 2,391	$ 2,188
Adjustments to Reconcile Net Income to Net Cash
Depreciation and Amortization	1,440	1,506
Compensation on Stock-Based Awards	234	201
Change in Accounts Receivable Allowance	(71)	18
Change in Inventory Reserves	(54)	(959)
Loss on Abandonment of Intangible Assets	0	560
Gain on Disposal of Property and Equipment	(15)	(176)
Changes in Current Operating Items
Accounts Receivable	(1,115)	1,686
Employee Retention Credit Receivable	0	(5,209)
Inventories	(4,402)	(5,755)
Contract Assets	(1,188)	(2,246)
Prepaid Expenses and other Curent Assets	(213)	(276)
Income Taxes	(67)	708
Accounts Payable	1,659	2,901
Accrued Payroll and Commissions	1,071	1,537
Other Accrued Liabilities	1,330	464
Net Cash Provided By (Used In) Operating Activities	1,000	(2,852)
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from Sale of Property and Equipment	15	626
Purchase of Intangible Asset	(43)	(49)
Purchases of Property and Equipment	(1,687)	(1,198)
Net Cash Used In Investing Activities	(1,715)	(621)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Line of Credit	857	2,681
Principal Payments on Long-Term Debt	0	(873)
Principal Payments on Financing Leases	(336)	(492)
Debt Issuance Costs	10	0
Stock Option Excercises	51	36
Net Cash Provided By Financing Activities	582	1,352
Net Change in Cash and Cash Equivalents	(133)	(2,121)
Cash and Cash Equivalents - Beginning of Period	2,225	3,564
Cash and Cash Equivalents - End of Period	2,092	1,443
Reconciliation of cash and restricted cash reported within the consolidated balance sheets
Cash	1,300	444
Restricted Cash	792	999
Total Cash and restricted cash reported in the consolidated statements of cash flows	2,092	1,443
Supplemental Disclosure of Cash Flow Information:
Cash Paid During the Period for Interest	328	220
Cash Paid (Refunded) During the Period for Income Taxes	122	(114)
Supplemental Noncash Investing and Financing Activities:
Property and Equipment Purchases in Accounts Payable	332	0
Property Acquired Under Operating Lease	$ 0	$ 858