CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Cash flows from operating activities:
Net income (loss)	$ 2,620	$ (1,554)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Share-based compensation	254	64
Depreciation and amortization	571	605
Loss (gain) on sale of property, plant and equipment	38	(4)
Credit loss	0	1
Non-cash lease expense	67	723
Changes in operating assets and liabilities:
Accounts receivable	1,461	(982)
Contract assets	(2,601)	(199)
Inventories	26	(228)
Prepaid expenses and other current assets	148	(155)
Other assets	(103)	(83)
Accounts payable and accrued expenses	(34)	971
Contract liabilities	(721)	1,044
Net cash provided by operating activities	1,726	203
Cash flows from investing activities:
Proceeds from sale of property, plant and equipment	2	4
Purchases of property, plant and equipment	(375)	(230)
Net cash used in investing activities	(373)	(226)
Cash flows from financing activities:
Proceeds from short-term borrowings	995	0
Principal payments on short-term borrowings	(995)	0
Proceeds from stock options exercised	112	0
Principal payments under finance lease obligations	(73)	(300)
Net cash provided by (used in) financing activities	39	(300)
Change in cash	1,392	(323)
Cash, beginning of year	2,030	2,353
Cash, end of year	$ 3,422	$ 2,030