Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2015

Quarterly Unaudited Financial Data

The following tables summarize the Company’s quarterly financial information for the years ended December 31, 2015 and 2014 (in thousands except per share amounts):

	Three Months Ended
	March 31, 2015			June 30, 2015			September 30, 2015			December 31, 2015
Revenue	$	7,692		$	8,830		$	8,045		$	9,656
Gross profit		2,978			1,802			2,485			3,494
Net loss	$	(9,460	)	$	(15,972	)	$	(15,680	)	$	(14,756	)
Net loss per share:
Basic	$	(0.10	)	$	(0.17	)	$	(0.16	)	$	(0.15	)
Diluted	$	(0.17	)	$	(0.17	)	$	(0.17	)	$	(0.15	)

	Three Months Ended
	March 31, 2014			June 30, 2014			September 30, 2014			December 31, 2014
Product revenue	$	7,866		$	8,601		$	10,362		$	9,587
Gross profit		3,709			3,849			4,673			2,997
Net loss	$	(225	)	$	(7,589	)	$	(10,759	)	$	(20,182	)
Net loss per share:
Basic	$	(0.00	)	$	(0.10	)	$	(0.14	)	$	(0.26	)
Diluted	$	(0.12	)	$	(0.16	)	$	(0.16	)	$	(0.26	)