Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Revenue:
Product revenue	$ 10,272	$ 9,880
Other revenue	41	56
Total revenue	10,313	9,936
Operating expense:
Cost of revenue	7,199	7,105
Gross profit	3,114	2,831
Research and development expense	1,273	1,338
Selling, general and administrative expense	3,019	3,215
Loss from operations	(1,178)	(1,722)
Interest income		1
Interest expense	(14)	(6)
Other, net	0	0
Loss before provision for income taxes	(1,192)	(1,727)
Provision for income taxes	0	0
Net loss	$ (1,192)	$ (1,727)
Net loss per share-basic and diluted	$ (0.04)	$ (0.06)
Weighted average number of basic and diluted common shares outstanding	28,574,902	28,482,256