Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Sales, net	$ 17,259	$ 14,683
Cost of sales	6,727	5,449
Gross profit	10,532	9,234
Operating expenses:
Sales and marketing	8,237	6,258
Research and development	1,078	787
General and administrative	8,949	9,551
Total operating expenses	18,264	16,596
Operating loss	(7,732)	(7,362)
Interest expense, net	(8)	(19)
Net loss	$ (7,740)	$ (7,381)
Basic loss per common share (in dollars per share)	$ (0.11)	$ (0.12)
Diluted loss per common share (in dollars per share)	$ (0.11)	$ (0.12)
Basic weighted average common shares outstanding (in shares)	68,314	64,164
Diluted weighted average common shares outstanding (in shares)	68,314	64,164