CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (LOSS)
Revenues	$ 146,769	$ 122,722	$ 292,318	$ 237,507
Cost of goods sold	100,792	82,948	200,507	164,273
Gross profit	45,977	39,774	91,811	73,234
Operating costs and expenses:
Selling	6,301	5,808	12,333	10,839
General and administrative	14,162	12,595	28,982	24,091
Engineering and development	9,952	9,791	20,339	19,177
Business development	400	1,417	597	2,265
Amortization of intangible assets	3,142	2,645	6,151	5,079
Total operating costs and expenses	33,957	32,256	68,402	61,451
Operating income	12,020	7,518	23,409	11,783
Other expense, net:
Interest expense	3,162	1,525	6,145	2,563
Other (income) expense, net	(42)	(279)	145	(234)
Total other expense, net	3,120	1,246	6,290	2,329
Income before income taxes	8,900	6,272	17,119	9,454
Income tax provision	(2,131)	(1,691)	(4,035)	(2,370)
Net income	$ 6,769	$ 4,581	$ 13,084	$ 7,084
Basic earnings per share:
Earnings per share	$ 0.42	$ 0.30	$ 0.82	$ 0.47
Basic weighted average common shares	15,969	15,355	15,921	15,226
Diluted earnings per share:
Earnings per share	$ 0.42	$ 0.29	$ 0.81	$ 0.45
Diluted weighted average common shares	16,219	15,932	16,178	15,752
Net income	$ 6,769	$ 4,581	$ 13,084	$ 7,084
Other comprehensive income (loss):
Foreign currency translation adjustment	(426)	(8,699)	928	(9,932)
Gain (loss) on derivatives, net of tax	707	974	(426)	3,576
Comprehensive income (loss)	$ 7,050	$ (3,144)	$ 13,586	$ 728