Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
CASH FLOWS FROM OPERATING ACTIVITIES
Net (loss) income	$ (1,316)	$ 765
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation	342	442
Amortization	5	40
Compensation on stock-based awards	118	80
Change in accounts receivable allowance	35	(66)
Change in inventory reserves	231	76
Other, net		(4)
Changes in current operating assets and liabilities:
Accounts receivable	(814)	3,215
Inventories	487	(1,400)
Contract assets	388	287
Prepaid expenses and other assets	(1,588)	(328)
Accounts payable	(1,441)	(8)
Accrued payroll and commissions	674	640
Customer deposits	(112)	(926)
Other accrued liabilities	61	15
Net cash (used in) provided by operating activities	(2,930)	2,828
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from sale of property and equipment		9
Purchases of property and equipment	(268)	(744)
Net cash used in investing activities	(268)	(735)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from line of credit	25,970	32,768
Payments to line of credit	(22,710)	(32,394)
Proceeds from notes payable	219
Principal payments on financing leases	(52)	(100)
Stock option exercises	19
Net cash provided by financing activities	3,446	274
Effect of exchange rate changes on cash	(2)	(14)
Net change in cash	246	2,353
Cash - beginning of period	916	1,675
Cash - end of period	1,162	4,028
Supplemental disclosure of cash flow information:
Cash paid for interest	203	134
Cash paid for income taxes	179	141
Supplemental noncash investing and financing activities:
Property and equipment purchases in accounts payable	42	16
Operating lease assets acquired under operating leases		$ 719