CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)
Net Sales	$ 4,965	$ 6,015
Cost Of Goods Sold	2,662	2,677
Gross Margin	2,303	3,338
Operating Expenses:
Research And Development	1,616	1,606
Selling, General And Administrative	2,048	2,062
Total Operating Expenses	3,664	3,668
Operating Income (loss)	(1,361)	(330)
Non-operating Income:
Interest Income	1	3
Gain On Sale Of Assets	58	0
Foreign Currency Transaction Gain (loss)	(60)	26
Total Non-operating Income (loss)	(1)	29
Income (loss) Before Income Taxes	(1,362)	(301)
Income Tax (expense) Benefit	(458)	(32)
Net Income (loss)	$ (1,820)	$ (333)
Basic Earnings (loss) Per Share	$ (0.21)	$ (0.04)
Diluted Earnings (loss) Per Share	$ (0.21)	$ (0.04)
Weighted-average Basic Shares	8,622	8,420
Weighted-average Diluted Shares	8,622	8,420