CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited Consolidated Condensed) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue:
Total revenue	$ 4,039	$ 3,755
Cost of revenue	3,005	2,871
Gross profit	1,034	884
Operating expense:
Research and development expense	372	477
Selling, general and administrative expense	705	877
Loss from operations	(43)	(470)
Interest expense	124	43
Loss before provision for income taxes	(167)	(513)
Provisions for income taxes
Net loss	$ (167)	$ (513)
Net loss per share - basic and diluted (in dollars per share)	$ 0.00	$ (0.02)
Weighted average number of basic and diluted common shares outstanding (in shares)	38,136,792	33,911,792
Product Revenue [Member]
Revenue:
Total revenue	$ 3,961	$ 3,497
Other Revenue [Member]
Revenue:
Total revenue	$ 78	$ 258