Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2015

Balance Sheet Components

Schedule of allowance for doubtful accounts

	December 31,		December 31,
	2015		2014
	(in thousands)
Beginning balance	$	527	$	508
Provision for estimated bad debts		529		349
Write offs		(85)		(330)
Ending balance	$	971	$	527

Schedule of property and equipment

		December 31,		December 31,
	Useful Life	2015		2014
		(in thousands)
Machinery and equipment	3-5 years	$	20,670	$	18,632
Furniture and fixtures	3 years		217		217
Computer equipment	3 years		911		700
Capitalized software held for internal use	3 years		1,037		—
Leasehold improvements	Life of lease		1,686		1,036
Construction-in-process			1,979		3,583
			26,500		24,168
Less: Accumulated depreciation and amortization			(13,790)		(9,594)
Total Property and Equipment, net		$	12,710	$	14,574

Schedule of accrued compensation

	December 31,		December 31,
	2015		2014
	(in thousands)
Accrued paid time off	$	2,024	$	1,577
Accrued commissions		3,691		2,651
Accrued bonuses		1,348		1,141
Other accrued compensation		1,489		611
Total accrued compensation	$	8,552	$	5,980

Schedule of other accrued liabilities

	December 31,		December 31,
	2015		2014
	(in thousands)
Accrued expenses	$	17,870	$	8,560
Accrued rent		450		551
Deferred lease obligation		42		99
Accrued interest		—		764
Sales tax payable		346		367
Total other accrued liabilities	$	18,708	$	10,341