Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Total revenues, net	$ 6,731	$ 6,112
Cost of revenues:
Total cost of revenues	5,297	4,776
Gross profit	1,434	1,336
Operating expenses:
Research and development	980	1,597
Selling, general and administrative	1,798	1,939
Total operating expenses	2,778	3,536
Loss from operations	(1,344)	(2,200)
Other income (expense):
Change in fair value of common stock warrant liability	(20)	794
Interest expense, net	(17)	(33)
Other income, net	12
Total other (expense) income	(25)	761
Loss before provision for income taxes	(1,369)	(1,439)
Income taxes
Net loss	$ (1,369)	$ (1,439)
Loss per share, basic and diluted	$ (0.03)	$ (0.03)
Weighted average number of shares outstanding:
Basic and Diluted	51,638,598	45,161,273
Product [Member]
Revenues:
Total revenues, net	$ 5,634	$ 5,507
Cost of revenues:
Cost of goods and services sold	4,790	4,426
Contract [Member]
Revenues:
Total revenues, net	1,097	605
Cost of revenues:
Cost of goods and services sold	$ 507	$ 350