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Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2017

Balance Sheet Components [Abstract]

Components Of Inventory



	December 31,
(in thousands)	2017			2016
Purchased materials	$	8,884		$	4,817
Work in process		9,994			7,287
Finished goods		4,187			3,530
Inventory	$	23,065		$	15,634

Components Of Prepaid Expenses And Other Current Assets


	December 31,
(in thousands)	2017			2016
Receivable from Prior Landlord	$	—		$	5,000
Rent deposits for O'Brien building		—			2,160
Prepaid expenses		1,318			2,342
Other current assets		931			476
Prepaid expenses and other current assets	$	2,249		$	9,978

Components Of Other Long-term Assets


	December 31,
(in thousands)	2017			2016
Rent deposits and tenant improvements for O'Brien building	$	—		$	9,641
Other		45			172
Other long-term assets	$	45		$	9,813

Components Of Property And Equipment, Net



	December 31,
(in thousands)	2017			2016
Building	$	—		$	1,160
Laboratory equipment and machinery		24,703			23,337
Leasehold improvements		29,728			8,138
Computer equipment		8,301			7,170
Software		4,615			5,189
Furniture and fixtures		2,382			823
Construction in progress		385			5,772
		70,114			51,589
Less: Accumulated depreciation		(32,194)			(37,029)
Property and equipment, net	$	37,920		$	14,560

Schedule Of Accrued Expenses



	December 31,
(in thousands)	2017			2016
Salaries and benefits	$	7,570		$	8,562
Accrued product development costs		2,034			5,411
Inventory accrual, professional services, accrued interest and other		3,014			2,631
Accrued expenses	$	12,618		$	16,604