Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Schedule of Property and Equipment

Property and equipment consisted of the following:

		December 31,
(Dollars in thousands)	Useful lives	2017			2016
Machinery and equipment	5-10	$	10,552		$	15,150
Computers and software	3	1,382			1,343
Leasehold improvements	6-10	425			212
Office equipment	5	89			89
Furniture and fixtures	5	187			206
Construction in process		135			114
Total		12,770			17,114
Accumulated depreciation		(7,301		)	(6,895		)
Property and equipment, net		$	5,469		$	10,219