CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Sales
Sales	$ 358,831	$ 345,765	$ 337,814
Cost of sales
Total cost of sales	193,832	170,002	153,887
Gross profit	164,999	175,763	183,927
Operating expenses
Selling, general and administrative	157,336	146,657	136,234
Research and development	41,806	49,415	48,761
Restructuring costs	15,393	4,614	7,368
Total operating expenses	214,535	200,686	192,363
Loss from operations	(49,536)	(24,923)	(8,436)
Other (income) expense
Interest expense (income)	3,348	(36)	55
Other expense (income), net	1,178	(3,236)	70
Loss before income tax	(54,062)	(21,651)	(8,561)
Income tax expense	2,515	5,105	31,403
Net loss	$ (56,577)	$ (26,756)	$ (39,964)
Net loss per share - Basic (in dollars per share)	$ (2.99)	$ (1.46)	$ (2.20)
Net loss per share - Diluted (in dollars per share)	$ (2.99)	$ (1.46)	$ (2.20)
Weighted average shares - Basic (in shares)	18,917,778	18,318,191	18,187,946
Weighted average shares - Diluted (in shares)	18,917,778	18,318,191	18,187,946
Product
Sales
Sales	$ 278,572	$ 265,280	$ 251,103
Cost of sales
Total cost of sales	150,472	123,836	109,024
Service
Sales
Sales	80,259	80,485	86,711
Cost of sales
Total cost of sales	$ 43,360	$ 46,166	$ 44,863