CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Revenues	$ 5,223	$ 4,107	$ 16,793	$ 11,338
Costs and expenses
Cost of sales	3,159	2,733	10,449	7,174
Selling, general and administrative	1,586	1,582	4,316	4,887
Total costs and expenses	4,745	4,315	14,765	12,061
Operating income (loss)	478	(208)	2,028	(723)
Interest income, net	(17)	(7)	(30)	(3)
Other income, net	(30)	(61)	(35)	(53)
(Gain) loss on sale of property, plant and equipment	0	0	3	(2)
Income (loss) before income tax expense	525	(140)	2,090	(665)
Income tax expense	2	3	7	8
Net income (loss)	$ 523	$ (143)	$ 2,083	$ (673)
Net income (loss) per share:
Basic	$ 0.04	$ (0.01)	$ 0.17	$ (0.06)
Fully diluted	$ 0.04	$ (0.01)	$ 0.17	$ (0.06)
Weighted-average shares outstanding:
Basic	12,199	11,888	12,119	11,888
Fully diluted	12,409	11,888	12,235	11,888