Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
CASH FLOWS PROVIDED BY OPERATING ACTIVITIES
Net Income	$ 681	$ 138
Adjustments to Reconcile Net Income to Net Cash Provided By Operating Activities:
Depreciation and Amortization	505	486
Compensation on Stock-Based Awards	99	48
Change in Inventory Reserves	32	97
Other, Net	(47)	23
Changes in Current Operating Items
Accounts Receivable	(206)	(188)
Inventories	1,075	(1,852)
Contract Assets	(823)	585
Prepaid Expenses and other Curent Assets	(600)	(263)
Income Taxes	113	(168)
Accounts Payable	(1,799)	1,302
Accrued Payroll and Commissions	1,244	845
Customer Deposits	1,315	456
Other Accrued Liabilities	129	(18)
Net Cash Provided By Operating Activities	1,718	1,491
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from Sale of Property and Equipment	0	15
Purchases of Property and Equipment	(496)	(529)
Net Cash Used In Investing Activities	(496)	(514)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from Line of Credit	31,133	26,986
Payments to Line of Credit	(32,145)	(28,420)
Principal Payments on Financing Leases	(96)	(184)
Stock Option Excercises	35	33
Net Cash Used In Financing Activities	(1,073)	(1,585)
Effect of Exchange Rate Changes on Cash	3	0
Net Change in Cash and Cash Equivalents	152	(608)
Cash and Cash Equivalents - Beginning of Year	2,481	2,225
Cash and Cash Equivalents - End of Year	2,633	1,617
Reconciliation of cash and restricted cash reported within the consolidated balance sheets
Cash	1,267	841
Restricted Cash	1,366	776
Total Cash and restricted cash reported in the consolidated statements of cash flows	2,633	1,617
Supplemental Disclosure of Cash Flow Information:
Cash Paid During the Period for Interest	129	94
Cash Paid During the Period for Income Taxes	112	0
Supplemental Noncash Investing and Financing Activities:
Property and Equipment Purchases in Accounts Payable	$ 78	$ 0