Equipment, Furniture and Leasehold Improvements (Tables)

12 Months Ended

Dec. 31, 2018

Equipment, Furniture and Leasehold Improvements [Abstract]

Schedule of Equipment, Furniture and Leasehold Improvements

	December 31,
	2018		2017
Computer hardware and software	$	800	$	693
Lab and factory equipment		17,107		15,678
Furniture, fixtures and office equipment		48		47
Assets under capital leases		66		66
Construction in progress		2,114		1,672
Leasehold improvements		22		-
Total equipment, furniture and leasehold improvements		20,157		18,156
Less:  accumulated depreciation		(11,236)		(9,603)
Equipment, furniture and leasehold improvements, net	$	8,921	$	8,553