Property and Equipment and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Assets [Abstract]

Schedule of future amortization expense

The following table illustrates the estimated future amortization expense of intangible assets as of December 31, 2016 (in thousands):

Year ending December 31,	Estimated Amortization Expense
2017	$	305
2018	247
2019	247
2020	149
2021	110
Thereafter	6
Total	$	1,064

Schedule of property, plant and equipment

Depreciation is computed using the straight line method over the estimated useful lives of the related assets, as follows:

	Life (years)
Asset category	From	To
Machinery and equipment	2	5
Computer hardware and software	3	7
Leasehold improvements	1	10
Furniture and fixtures	3	15

Property and Equipment

Property and equipment, at cost, consisted of the following (in thousands):

December 31:	2016			2015
Machinery and equipment	$	9,026		$	8,557
Computer hardware and software	6,080			6,512
Leasehold improvements	2,041			2,406
Furniture and fixtures	382			438
Construction in progress	53			119
Total property and equipment, at cost	17,582			18,032
Less — accumulated depreciation and amortization	(14,452		)	(13,982		)
Total property and equipment	$	3,130		$	4,050