CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited Consolidated Condensed) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenue:
Total revenue	$ 3,294	$ 4,116	$ 7,049	$ 7,014
Operating expense:
Cost of revenue	2,462	2,711	5,333	5,199
Gross profit	832	1,405	1,716	1,815
Research and development expense	485	538	962	1,096
Selling, general and administrative expense	944	770	1,821	1,535
(Loss)/income from operations	(597)	97	(1,067)	(816)
Interest expense	50	9	93	20
Other, net
(Loss)/income before provision for income taxes	(647)	88	(1,160)	(836)
Provision for income taxes
Net (loss)/income	$ (647)	$ 88	$ (1,160)	$ (836)
Net (loss)/income per basic shares (in dollars per share)	$ (0.02)	$ 0	$ (0.03)	$ (0.02)
Weighted average number of basic common shares outstanding (in shares)	36,136,759	33,847,793	35,030,422	33,847,793
Net (loss)/income per diluted share (in dollars per share)	$ (0.02)	$ 0	$ (0.03)	$ (0.02)
Weighted average number of diluted common shares outstanding (in shares)	36,136,759	34,909,793	35,030,422	33,847,793
Product Revenue [Member]
Revenue:
Total revenue	$ 3,257	$ 4,043	$ 6,754	$ 6,910
Other Revenue [Member]
Revenue:
Total revenue	$ 37	$ 73	$ 295	$ 104