Condensed Consolidated Statements Of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Condensed Consolidated Statements Of Operations (Unaudited)
Sales, net	$ 11,917	$ 12,626	$ 30,612	$ 32,526
Expenses
Cost of products	9,676	8,488	25,175	20,914
Selling, general and administrative	4,632	4,508	14,952	13,034
Total operating expenses	14,308	12,996	40,127	33,948
Operating loss	(2,391)	(370)	(9,515)	(1,422)
Other (expense) income:
Net interest expense	(30)	(19)	(70)	(37)
Loss on disposal of property, plant and equipment	0	(6)	0	(6)
Gain (loss) on investments	76	(2,157)	(1,021)	310
Other expense	(57)	(14)	(66)	(59)
Total other (expense) income	(11)	(2,196)	(1,157)	208
Loss before income taxes	(2,402)	(2,566)	(10,672)	(1,214)
Provision for income tax	0	0	0	(184)
Net (loss) income	$ (2,402)	$ (2,566)	$ (10,672)	$ (1,398)
Net loss per share-basic:	$ (0.14)	$ (0.15)	$ (0.63)	$ (0.10)
Net loss per share-diluted:	$ (0.14)	$ (0.15)	$ (0.63)	$ (0.10)
Weighted average shares outstanding-basic	16,950,486	16,795,356	16,889,554	14,307,847
Weighted average shares outstanding-diluted	16,950,486	16,795,356	16,889,554	14,307,847