CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited)
Revenues	$ 48,773	$ 43,838	$ 96,107	$ 83,831
Cost of goods sold	32,926	26,584	67,909	51,496
Gross profit	15,847	17,254	28,198	32,335
Operating expenses:
Selling	2,714	2,317	5,486	5,045
General and administrative	11,279	5,951	16,066	12,205
Research and development	1,320	1,607	2,970	3,236
Operating Expenses	15,313	9,875	24,522	20,486
Operating income	534	7,379	3,676	11,849
Interest and dividend income	388	127	544	367
Other investment income/(losses)	(542)	98	(651)	(623)
Other income	23	29	37	39
Interest expense	0	(27)	0	(27)
Nonoperating Income (Expense)	(131)	227	(70)	(244)
Income before provision for income taxes	403	7,606	3,606	11,605
Provision for income taxes	(1)	(1,043)	(412)	(1,557)
Net income	$ 402	$ 6,563	$ 3,194	$ 10,048
Net income per basic share	$ 0.23	$ 3.73	$ 1.81	$ 5.71
Weighted average basic shares outstanding	1,761	1,760	1,761	1,761
Net income per diluted share	$ 0.23	$ 3.73	$ 1.81	$ 5.70
Weighted average diluted shares outstanding	1,763	1,761	1,762	1,762
Dividends per common share	$ 2.20	$ 2.15	$ 4.40	$ 4.30