STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Revenue:
Product revenue	$ 10,720	$ 10,272
Other revenue	63	41
Total revenue	10,783	10,313
Operating expense:
Cost of revenue	7,543	7,199
Gross profit	3,240	3,114
Research and development expense	1,554	1,273
Selling, general and administrative expense	2,954	3,019
Loss from operations	(1,268)	(1,178)
Interest expense	(15)	(14)
Loss before provision for income taxes	(1,283)	(1,192)
Net loss	$ (1,283)	$ (1,192)
Net loss per share - basic and diluted	$ (0.04)	$ (0.04)
Weighted average number of basic and diluted common shares outstanding	30,911,869	28,574,902