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Unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenue	$ 6,305	$ 7,289
Cost of goods sold	3,601	3,190
Gross profit	2,704	4,099
Operating expenses:
Sales and marketing	1,953	2,868
Research and product development	1,587	2,056
General and administrative	1,555	1,617
Total operating expenses	5,095	6,541
Operating loss	(2,391)	(2,442)
Other income, net	42	24
Loss before income taxes	(2,349)	(2,418)
Provision for (benefit from) income taxes		(572)
Net loss	$ (2,349)	$ (1,846)
Basic weighted average shares outstanding (in shares)	16,630,597	8,307,125
Diluted weighted average shares outstanding (in shares)	16,630,597	8,307,125
Basic loss per share (in dollars per share)	$ (0.14)	$ (0.22)
Diluted loss per share (in dollars per share)	$ (0.14)	$ (0.22)
Comprehensive loss:
Net loss	$ (2,349)	$ (1,846)
Unrealized gain (loss) on available-for-sale securities, net of tax	70	(70)
Change in foreign currency translation adjustment	(27)	22
Comprehensive loss	$ (2,306)	$ (1,894)

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