Quarterly Financial Information (unaudited) (Tables)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

Statement of Operations Data:

	First		Second		Third		Fourth		Fiscal
2014	Quarter		Quarter		Quarter		Quarter		Year
	(in thousands, except per share data)
Revenues	$	23	$	23	$	2	$	45	$	93
Cost of product revenues		12		12		1		23		48
Gross profit		11		11		1		22		45
Total Operating expenses		3,017		2,544		2,677		2,864		11,102
Operating loss		(3,006)		(2,533)		(2,676)		(2,842)		(11,057)
Other (expense) income, net		-		-		(4)		-		(4)
Loss before income taxes		(3,006)		(2,533)		(2,680)		(2,842)		(11,061)
Income taxes		-		-		-		-		-
Net loss	$	(3,006)	$	(2,533)	$	(2,680)	$	(2,842)	$	(11,061)
Basic and diluted net loss per share	$	(0.39)	$	(0.32)	$	(0.34)	$	(0.36)	$	(1.41)

Statement of Operations Data:

	First		Second		Third		Fourth		Fiscal
2013	Quarter		Quarter		Quarter		Quarter		Year
	(in thousands, except per share data)
Revenues	$	-	$	-	$	-	$	22	$	22
Cost of product revenues		-		-		-		11		11
Gross profit		-		-		-		11		11
Total Operating expenses		2,020		2,089		2,060		2,659		8,828
Operating loss		(2,020)		(2,089)		(2,060)		(2,648)		(8,817)
Other (expense) income, net		-		-		-		-		-
Loss before income taxes		(2,020)		(2,089)		(2,060)		(2,648)		(8,817)
Income taxes		-		-		-		-		-
Net loss	$	(2,020)	$	(2,089)	$	(2,060)	$	(2,648)	$	(8,817)
Basic and diluted net loss per share	$	(0.26)	$	(0.27)	$	(0.27)	$	(0.34)	$	(1.14)