CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (LOSS)
Revenues	$ 145,319	$ 134,405	$ 437,637	$ 371,912
Cost of goods sold	97,821	91,108	298,328	255,381
Gross profit	47,498	43,297	139,309	116,531
Operating costs and expenses:
Selling	6,021	5,497	18,354	16,336
General and administrative	14,642	13,148	43,624	37,239
Engineering and development	10,702	9,702	31,041	28,879
Business development	1,194	199	1,791	2,464
Amortization of intangible assets	3,075	3,054	9,226	8,133
Total operating costs and expenses	35,634	31,600	104,036	93,051
Operating income	11,864	11,697	35,273	23,480
Other expense, net:
Interest expense	3,164	2,337	9,309	4,900
Other expense, net	42	243	187	9
Total other expense, net	3,206	2,580	9,496	4,909
Income before income taxes	8,658	9,117	25,777	18,571
Income tax provision	(1,992)	(2,508)	(6,027)	(4,878)
Net income	$ 6,666	$ 6,609	$ 19,750	$ 13,693
Basic earnings per share:
Earnings per share	$ 0.42	$ 0.42	$ 1.24	$ 0.89
Basic weighted average common shares	15,979	15,661	15,940	15,373
Diluted earnings per share:
Earnings per share	$ 0.41	$ 0.41	$ 1.22	$ 0.86
Diluted weighted average common shares	16,237	16,169	16,198	15,929
Net income	$ 6,666	$ 6,609	$ 19,750	$ 13,693
Other comprehensive income (loss):
Foreign currency translation adjustment	(2,923)	(9,603)	(1,995)	(19,535)
(Loss) gain on derivatives, net of tax	(170)	2,042	(596)	5,617
Comprehensive income (loss)	$ 3,573	$ (952)	$ 17,159	$ (225)