Balance Sheet Information (Tables)

6 Months Ended

Jun. 30, 2016

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Summary of Inventories

Inventories consisted of the following:

	June 30,		December 31,
	2016		2015
Raw materials	$	9,388	$	11,012
Work in process		1,177		917
Finished goods		4,625		5,667
Inventories, net	$	15,190	$	17,596

Summary of Property and Equipment

Property and equipment consisted of the following:

	June 30,			December 31,
	2016			2015
Building	$	6,227		$	6,227
Computers and office equipment		11,609			10,931
Manufacturing and test equipment		12,952			12,826
Furniture and fixtures		1,230			1,273
Leasehold improvements		1,233			1,001
Motor vehicles		42			42
Total property and equipment		33,293			32,300
Less: Accumulated depreciation and amortization		(21,448	)		(20,231	)
Land		1,770			1,770
Property and equipment, net	$	13,615		$	13,839

Summary of Accrued Liabilities

Accrued liabilities consisted of the following:

	June 30,		December 31,
	2016		2015
Paid time off	$	1,320	$	1,271
Inventory receipts		1,267		1,628
Payroll, bonuses, and other employee benefits		1,196		1,179
Income and sales taxes		478		381
Warranties		303		348
Employee stock purchase plan		257		280
Professional fees and contractors		227		305
Restructuring		208		237
Real estate taxes		150		161
Deferred revenues		105		65
Other		281		335
Total	$	5,792	$	6,190

Summary of Long-term Liabilities

Long-term liabilities consist of the following:

	June 30,		December 31,
	2016		2015
Deferred rent	$	186	$	250
Long-term obligations under capital leases		182		107
Restructuring		89		0
Deferred revenues		16		31
Total	$	473	$	388