Condensed Consolidated Statements of Operations (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Revenue	$ 5,306	$ 3,440
Cost of revenue	1,859	1,304
Gross profit	3,447	2,136
Operating expenses:
Research and development	851	561
Selling and marketing	891	301
General and administrative	1,486	1,889
Total operating expenses	3,228	2,751
Operating income (loss)	219	(615)
Interest and other income (expense)	119	13
Income (loss) before income taxes	338	(602)
Provision for income taxes	106	0
Income (loss) from continuing operations	232	(602)
Income (loss) from discontinued operations	0	59
Net income (loss)	$ 232	$ (543)
Income (loss) per common share:
Basic	$ 0.01	$ (0.05)
Diluted	$ 0.01	$ (0.05)
Weighted-average common shares:
Basic	17,676	12,077
Diluted	18,178	12,077