Equipment, Furniture and Leasehold Improvements (Tables)

12 Months Ended

Dec. 31, 2019

Equipment, Furniture and Leasehold Improvements [Abstract]

Schedule of Equipment, Furniture and Leasehold Improvements

	December 31,
	2019		2018
Computer hardware and software	$	893	$	800
Lab and factory equipment		17,482		17,107
Furniture, fixtures and office equipment		59		48
Assets under capital leases		116		66
Construction in progress		2,668		2,114
Leasehold improvements		60		22
Total equipment, furniture and leasehold improvements		21,278		20,157
Less:  accumulated depreciation		(13,178)		(11,236)
Equipment, furniture and leasehold improvements, net	$	8,100	$	8,921