Balance Sheet Details - (Tables)

12 Months Ended

Dec. 31, 2017

Balance Sheet Detail [Abstract]

Schedule of Inventories

Inventories are comprised of the following:

	December 31,
	2017		2016
Materials	$	39,765	$	32,993
Work-in-process		20,923		18,764
Finished goods		6,833		13,728
Total inventories	$	67,521	$	65,485

Schedule of Property, Plant and Equipment, Net

Property, plant and equipment, net, is comprised of the following:

	December 31,
	2017			2016
Land and building	$	2,584		$	2,584
Machinery and equipment		29,870			23,493
Furniture and fixtures		3,201			2,699
Computer equipment and software		5,444			5,204
Leasehold improvements		9,472			8,116
		50,571			42,096
Accumulated depreciation		(33,229	)		(30,238	)
Total property, plant and equipment, net	$	17,342		$	11,858

Schedule of Other Current Liabilities

Other current liabilities is comprised of the following:

	December 31,
	2017		2016
Intangible asset acquisition - Stella Alliance	$	100	$	1,000
Contingent consideration - acquisitions		634		855
Warrant settlement payable		—		1,025
Customer deposits		5,561		996
Other		2,989		3,263
Total other current liabilities	$	9,284	$	7,139

Schedule of Other Non-Current Liabilities

Other non-current liabilities is comprised of the following:

	December 31,
	2017		2016
Unrecognized tax benefits (including interest)	$	4,660	$	3,386
Contingent consideration - acquisitions		1,959		2,396
Deferred revenue		983		1,132
Other		2,859		2,088
Total non-current liabilities	$	10,461	$	9,002