CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities:
Net income (loss)	$ 2,083	$ (673)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Share-based compensation	76	49
Depreciation and amortization	437	461
Loss (gain) on sale of property, plant and equipment	3	(2)
Bad debt expense	0	1
Non-cash lease expense (benefit)	62	(186)
Changes in operating assets and liabilities:
Accounts receivable, net	(1,078)	(2,601)
Contract assets	62	145
Inventories	29	30
Prepaid expenses and other current assets	86	(274)
Other assets, net	(263)	(83)
Accounts payable and accrued expenses	(375)	985
Contract liabilities	49	1,415
Net cash provided by (used in) operating activities	1,171	(733)
Cash flows from investing activities:
Proceeds from sale of property, plant and equipment	0	2
Purchases of property, plant and equipment	(127)	(230)
Net cash used in investing activities	(127)	(228)
Cash flows from financing activities:
Principal payments under finance lease obligations	(68)	(260)
Proceeds from short-term borrowings	895	0
Principal payments on short-term borrowings	(895)	0
Proceeds from stock options exercised	114	0
Net cash provided by (used in) financing activities	46	(260)
Change in cash	1,090	(1,221)
Cash, beginning of period	2,030	2,353
Cash, end of period	$ 3,120	$ 1,132