CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Sales	$ 76,331	$ 79,515
Cost of Sales	35,924	35,642
Gross Profit	40,407	43,873
Operating Expenses
Selling, general and administrative	33,348	36,324
Research and development	11,973	10,415
Restructuring costs	1,524	13,688
Total operating expenses	46,845	60,427
Loss from operations	(6,438)	(16,554)
Other (income) expense
Interest expense, net	10	34
Other (income) expense, net	(1,615)	473
Loss before income tax benefit	(4,833)	(17,061)
Income tax benefit	(1,612)	(2,238)
Net loss	$ (3,221)	$ (14,823)
Net loss per share - Basic (in dollars per share)	$ (0.18)	$ (0.84)
Net loss per share - Diluted (in dollars per share)	$ (0.18)	$ (0.84)
Weighted average shares - Basic (in shares)	18,076,410	17,616,964
Weighted average shares - Diluted (in shares)	18,076,410	17,616,964
Product
Sales	$ 54,635	$ 56,525
Cost of Sales	24,804	23,066
Service
Sales	21,696	22,990
Cost of Sales	$ 11,120	$ 12,576