Consolidated Statements of Operations (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue
Total revenue	$ 16,475	$ 20,644
Cost of revenue	9,261	10,813
Gross profit	7,214	9,831
Operating expenses
Sales and marketing	6,563	8,181
Research and development	2,990	2,912
General and administrative	5,736	5,329
Total operating expenses	15,289	16,422
Loss from operations	(8,075)	(6,591)
Other income and expenses
Interest income	35	107
Interest expense	(574)	(453)
Foreign currency exchange transaction loss	(714)	(653)
Total other expenses	(1,253)	(999)
Loss before income taxes	(9,328)	(7,590)
Income tax provision	25	(9)
Net loss	$ (9,353)	$ (7,581)
Net loss per share - basic and diluted (in dollars per share)	$ (0.14)	$ (0.12)
Weighted average common shares outstanding - basic and diluted (in shares)	67,274,391	62,849,335
Product
Revenue
Total revenue	$ 16,290	$ 20,469
Royalty
Revenue
Total revenue	$ 185	$ 175