Quarterly Financial Information

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information [Abstract]

Quarterly Financial Information

15.           Quarterly Financial Information

	For the Quarter Ended
	March 31,			June 30,			September 30,			December 31,
	(unaudited, in thousands except per share amounts)
2014
Net revenues	$	1,014		$	865		$	1,126		$	1,735
Cost of revenues		166			452			422			469
Gross margin		848			413			704			1,266
Net loss		(4,008	)		(3,874	)		(3,245	)		(3,107	)
Net loss per basic and diluted common share	$	(0.11	)	$	(0.10	)	$	(0.08	)	$	(0.08	)

2013
Net revenues	$	548		$	1,084		$	1,076		$	1,009
Cost of revenues		16			662			765			199
Gross margin		532			422			311			810
Net loss		(3,570	)		(3,120	)		(3,343	)		(3,047	)
Net loss per basic and diluted common share	$	(0.11	)	$	(0.09	)	$	(0.09	)	$	(0.08	)

2012
Net revenues	$	1,164		$	1,974		$	1,679		$	2,320
Cost of revenues		249			494			337			385
Gross margin		915			1,480			1,342			1,935
Net loss		(1,588	)		(3,427	)		(2,144	)		(2,128	)
Net loss per basic and diluted common share	$	(0.05	)	$	(0.10	)	$	(0.06	)	$	(0.07	)

Quarterly and year-to-date computations of per share amounts are made independently. Therefore, the sum of per share amounts for the quarters may not agree with the per share amounts for the year.