Quarterly Financial Information (unaudited and restated) (Tables)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Summary of consolidated financial results of operations

This table summarizes the unaudited consolidated financial results of operations for the quarters ended (amounts in thousands except per share data):

	March 31,			June 30,			September 30,			December 31,
2014 Quarter Ended
Net product sales	$	46		$	58		$	20		$	56
Cost of sales	793			547			512			460
Gross loss	(747		)	(489		)	(492		)	(404		)
Operating expenses	10,253			6,107			5,699			5,763
Other income (expense)	(3,009		)	4,339			179			2,795
Net loss	$	(14,009	)	$	(2,257	)	$	(6,012	)	$	(3,372	)
Basic net loss per share	$	(0.35	)	$	(0.06	)	$	(0.15	)	$	(0.08	)
Diluted net loss per share	$	(0.35	)	$	(0.09	)	$	(0.17	)	$	(0.09	)
2013 Quarter Ended
Net product sales	$	26		$	62		$	68		$	44
Cost of sales	2,213			2,104			1,792			1,392
Gross loss	(2,187		)	(2,042		)	(1,724		)	(1,348		)
Operating expenses	3,721			3,777			11,401			4,303
Other income (expense)	1,338			(8,818		)	6,520			(91		)
Net loss	$	(4,570	)	$	(14,637	)	$	(6,605	)	$	(5,742	)
Basic net loss per share	$	(0.17	)	$	(0.63	)	$	(0.24	)	$	(0.15	)
Diluted net loss per share	$	(0.18	)	$	(0.63	)	$	(0.31	)	$	(0.15	)