Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data (Unaudited)

11. QUARTERLY FINANCIAL DATA (Unaudited)

Quarterly Financial Data (Unaudited)

Summary quarterly results for the two years ended December 31, 2014 are as follows (in thousands, other than share and per share data):

	Three Months Ended
2014	March 31			June 30			September 30			December 31			Full Year
Revenue	$	14,268		$	14,469		$	8,036		$	8,912		$	45,685
Gross loss	$	(7,494	)	$	(7,274	)	$	(9,460	)	$	(5,459	)	$	(29,687	)
Loss from operations	$	(10,925	)	$	(10,179	)	$	(13,872	)	$	(8,637	)	$	(43,613	)
Loss before income taxes	$	(10,888	)	$	(9,984	)	$	(14,011	)	$	(9,032	)	$	(43,915	)
Net loss	$	(10,894	)	$	(9,984	)	$	(13,713	)	$	(9,402	)	$	(43,993	)
Basic and diluted loss per common share	$	(0.43	)	$	(0.39	)	$	(0.53	)	$	(0.36	)	$	(1.70	)
Weighted average common shares outstanding used in computing net loss per common share, basic and diluted:		25,317,147			25,706,797			26,110,651			26,127,026			25,815,405

	Three Months Ended
2013	March 31			June 30			September 30			December 31			Full Year
Revenue	$	8,307		$	10,555		$	11,115		$	11,536		$	41,513
Gross loss	$	(3,375	)	$	(6,417	)	$	(6,318	)	$	(5,811	)	$	(21,921	)
Loss from operations	$	(6,296	)	$	(9,968	)	$	(9,595	)	$	(9,025	)	$	(34,884	)
Loss before income taxes	$	(6,418	)	$	(10,173	)	$	(9,814	)	$	(9,106	)	$	(35,511	)
Net loss	$	(3,376	)	$	(5,894	)	$	(5,840	)	$	(15,241	)	$	(30,351	)
Basic and diluted loss per common share	$	(0.15	)	$	(0.26	)	$	(0.26	)	$	(0.67	)	$	(1.35	)
Weighted average common shares outstanding used in computing net loss per common share, basic and diluted:		22,550,378			22,560,603			22,578,608			22,599,258			22,572,212