Equipment and Leasehold Improvements (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Schedule of components of equipment and leasehold improvements

Equipment and leasehold improvements consist of the following:

	As of December 31,
	2016			2015
Machinery and equipment	$	14,587		$	14,562
Office equipment		790			778
Office furniture		110			110
Leasehold improvements		4,814			4,789
Construction in progress		75			11
		20,376			20,250
Less: Accumulated depreciation and amortization		(18,981	)		(18,389	)
	$	1,395		$	1,861