Note 3 - Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2013

Significant Accounting Policies [Text Block]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Common stock options		2,277,989		4,316,436		2,277,989		4,316,436
Restricted stock units		—		2,325,000		—		2,730,000
Shares issuable upon conversion of preferred stock		—		—		—		7,444,706
Warrants		21,718,914		31,088,705		21,718,914		34,221,058
Total shares excluded from calculation		23,996,903		37,730,141		23,996,903		48,712,200

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three Months Ended June 30,					Six Months Ended June 30,
	2013			2012		2013			2012
EPS Numerator – Basic:
Net income (loss)	$	(1,684	)	$	2,209	$	(2,784	)	$	(2,495	)
EPS Numerator – Diluted:
Net income (loss)	$	(1,684	)	$	2,959	$	(2,784	)	$	(2,495	)
EPS Denominator:
Weighted-average common shares outstanding––Basic		113,639,424			83,772,960		110,158,277			80,414,692
Common stock equivalents: convertible preferred stock, restricted stock units and warrants		—			7,818,933		—			—
Weighted-average common shares outstanding––Diluted		113,639,424			91,591,893		110,158,277			80,414,692

Interest Expense [Table Text Block]

	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
	(in $000s)						(in $000s)
Interest expense	$	(125	)	$	(208	)	$	(247	)	$	(447	)
Amortization of debt issuance costs and discount		(50	)		(172	)		(116	)		(296	)
Interest and amortization of debt discount and expense	$	(175	)	$	(380	)	$	(363	)	$	(743	)

Schedule of Other Current Assets [Table Text Block]

	June 30,		December 31,
	2013		2012
	(in thousands)
Prepaid expenses	$	30	$	43
Prepaid insurance		64		53
Other		5		20
Total prepaid expenses and other current assets	$	99	$	116

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]

	June 30, 2013				December 31, 2012
	Carrying Amount		Level 2 Fair Value		Carrying Amount		Level 2 Fair Value
	(In millions)
Non-convertible loans	$	4.1	$	4.0	$	4.1	$	4.0