Note 17 - Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

Embedded conversion feature	Significant Unobservable Inputs (Level 3) Total Fair Value
March 31, 2013	$	16,850,000
December 31, 2012	$	28,700,000

Fair Value Inputs, Liabilities, Quantitative Information [Table Text Block]

	March 31, 2013			December 31, 2012
Expected volatility		129	%		119	%
Probability of trigger of reset provision		75	%		50	%
Remaining term (in years)		0.5			0.7
Risk-free rate		0.1	%		0.1	%
Credit spread		24	%		26	%
Stock price	$	0.08		$	0.14

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

	Balance Beginning of Period		Issuance		Loss or (Gain) Recognized in Earning from Change in Fair Value			Balance End of Period
For the three months ended March 31, 2013
Embedded conversion feature	$	28,700,000	$	--	$	(11,850,000	)	$	16,850,000
For the three months ended March 31, 2012
Embedded conversion feature	$	12,470,000	$	--	$	(2,920,000	)	$	9,550,000