CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue
Consolidated revenue	$ 50,160	$ 55,757
Costs and expenses
Total costs and expenses	31,289	41,288
Selling, general and administrative expenses
Sales and marketing	5,252	3,826
Research and development	5,430	4,061
General and administrative	22,923	20,076
Selling, general and administrative expenses	33,605	27,963
Operating loss	(14,734)	(13,494)
Other income (expense)
Other income (expense)	12	(1,054)
Interest expense	(190)	(196)
Loss before income taxes	(14,912)	(14,744)
Provision for income taxes	(71)	(34)
Net loss	$ (14,983)	$ (14,778)
Net loss per share, basic (in dollars per share)	$ (0.22)	$ (0.23)
Net loss per share, diluted (in dollars per share)	$ (0.22)	$ (0.23)
Weighted-average number of common shares outstanding, basic (in shares)	67,559	64,625
Weighted-average number of common shares outstanding, diluted (in shares)	67,559	64,625
Services
Revenue
Consolidated revenue	$ 48,108	$ 52,058
Costs and expenses
Total costs and expenses	29,731	39,490
Products
Revenue
Consolidated revenue	2,052	3,699
Costs and expenses
Total costs and expenses	$ 1,558	$ 1,798