Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2015

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data (Unaudited)

12. QUARTERLY FINANCIAL DATA (Unaudited)

Quarterly Financial Data (Unaudited)

Summary quarterly results for the two years ended December 31, 2015 are as follows (in thousands, other than share and per share data):

	Three Months Ended												Full Year
2015	March 31			June 30			September 30			December 31
Revenue	$	8,910		$	7,106		$	5,346		$	2,456		$	23,818
Gross loss	$	(5,109	)	$	(5,155	)	$	(3,891	)	$	(8,988	)	$	(23,143	)
Loss from operations	$	(7,948	)	$	(8,322	)	$	(47,370	)	$	(12,309	)	$	(75,949	)
Loss before income taxes	$	(8,312	)	$	(8,529	)	$	(48,859	)	$	(12,156	)	$	(77,856	)
Net loss	$	(8,348	)	$	(8,580	)	$	(48,196	)	$	(12,706	)	$	(77,830	)
Basic and diluted loss per common share	$	(0.32	)	$	(0.33	)	$	(1.84	)	$	(0.49	)	$	(2.98	)
Weighted average common shares outstanding used in computing net loss per common share, basic and diluted:		26,129,276			26,142,261			26,160,308			26,192,838			26,156,170
	Three Months Ended												Full Year
2014	March 31			June 30			September 30			December 31
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