CONDENSED CONSOLIDATED STATEMENTS OF INCOME (LOSS) (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenues:
Total revenues	$ 90,865	$ 83,137
Cost of sales:
Total cost of sales	65,502	63,995
Selling, general and administrative	22,585	22,393
Engineering and product development	3,399	3,676
Restructuring and other charges	1,718	32
Gain on sale of property, plant and equipment	(6,647)	(114)
Foreign currency transaction (gain) loss	1,120	(1,254)
Total costs and expenses	87,677	88,728
Operating income (loss)	3,188	(5,591)
Interest income	2,827	203
Interest expense	(80)	(54)
Income (loss) before income taxes	5,935	(5,442)
Income tax provision	3,624	3,496
Net income (loss)	$ 2,311	$ (8,938)
Income (loss) per common share:
Basic	$ 0.07	$ (0.26)
Diluted	$ 0.07	$ (0.26)
Weighted average common shares outstanding:
Basic	34,128	34,494
Diluted	34,489	34,494
Products
Revenues:
Revenues from products and services	$ 59,246	$ 55,642
Cost of sales:
Total cost of sales	47,044	48,038
Services
Revenues:
Revenues from products and services	21,281	17,499
Cost of sales:
Total cost of sales	12,003	8,784
Leasing
Revenues:
Leasing	10,338	9,996
Cost of sales:
Total cost of sales	$ 6,455	$ 7,173