Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2016

Balance Sheet Components

Schedule of allowance for doubtful accounts

	December 31,		December 31,
	2016		2015
	(in thousands)
Beginning balance	$	971	$	527
Provision for estimated bad debts		984		529
Write offs		(65)		(85)
Ending balance	$	1,890	$	971

Schedule of property and equipment

		December 31,		December 31,
	Useful Life	2016		2015
		(in thousands)
Machinery and equipment	3-5 years	$	27,303	$	20,670
Furniture and fixtures	3 years		1,087		217
Computer equipment	3 years		861		911
Capitalized software held for internal use	3 years		2,172		1,037
Leasehold improvements	Life of lease		10,444		1,686
Construction-in-process			9,759		1,979
			51,626		26,500
Less: Accumulated depreciation and amortization			(19,337)		(13,790)
Total Property and equipment, net		$	32,289	$	12,710

Schedule of accrued compensation

	December 31,		December 31,
	2016		2015
	(in thousands)
Accrued paid time off	$	1,892	$	2,024
Accrued commissions		3,868		3,691
Accrued bonuses		2,387		1,348
Other accrued compensation		2,920		1,489
Total accrued compensation	$	11,067	$	8,552

Schedule of other accrued liabilities

	December 31,		December 31,
	2016		2015
	(in thousands)
Overpayments from insurance carriers	$	7,535	$	3,306
Other accrued expenses		4,521		4,344
Testing and laboratory materials from suppliers		3,804		7,736
Marketing and corporate affairs		202		1,118
Leasehold improvement projects in progress		1,659		—
Accrued specimen service fees		469		454
Accrued shipping charges		467		401
Sales tax payable		459		346
Clinical trials and studies		388		90
Accrued rent		195		450
Legal, audit and consulting fees		180		421
Deferred lease obligation		—		42
Total other accrued liabilities	$	19,879	$	18,708