Balance Sheet Details (Tables)

9 Months Ended

Sep. 30, 2016

Balance Sheet Related Disclosures [Abstract]

Schedule of inventories

	September 30, 2016			December 31, 2015
Raw materials and purchased parts	$	14,602		$	21,126
Work-in-process	1,358			4,367
Finished goods	19,951			16,913
Consigned finished goods	—			28
Reserves	(972		)	(3,379		)
Total inventories, net	$	34,939		$	39,055

Schedule of activity in the warranty reserve

Activity in the warranty reserve, which is included in “accounts payable and accrued liabilities” in the condensed consolidated balance sheets, is as follows:

	Nine Months Ended September 30,
	2016			2015
Beginning balance	$	1,288		$	716
Product warranties issued	298			515
Settlement of warranties	(427		)	(530		)
Changes related to preexisting warranties	146			339
Ending balance	$	1,305		$	1,040

Schedule of change in the carrying amount of goodwill

The change in the carrying amount of goodwill from December 31, 2015 to September 30, 2016 is as follows:

Balance at December 31, 2015	$	23,635
Foreign currency translation adjustments	512
Goodwill related to sale of product line	(291		)
Balance at September 30, 2016	$	23,856

Schedule of accumulated other comprehensive income

	Foreign Currency Translation Adjustment		Defined Benefit Pension Plan			Accumulated Other Comprehensive Income		Affected Line Items in the Statement of Operations
Balance as of December 31, 2015	$	9,933	$	(5,039	)	$	4,894
Other comprehensive income before reclassification	1,557		—			1,557
Amounts reclassified from accumulated other comprehensive income	—		236			236		Cost of Sales, Selling, General and Administrative and Research and Development Expense
Net other comprehensive income for the nine months ended September 30, 2016	1,557		236			1,793
Balance as of September 30, 2016	$	11,490	$	(4,803	)	$	6,687