Note 16 - Net Loss Per Share (Detail) - Securities Excluded from the Calculation of Diluted Net Loss Per Share	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2012		Jun. 30, 2011
Antidilutive Securities	75,309,264		57,382,083		75,049,823		41,331,109
Convertible Debt Securities [Member]
Antidilutive Securities	65,359,776	[1]	54,674,583	[1]	65,359,776	[1]	31,807,320	[1]
Stock Options [Member]
Antidilutive Securities	9,849,488		2,647,500		9,590,047		9,450,308
Warrant [Member]
Antidilutive Securities	60,000		60,000		60,000		60,000
Restricted Stock [Member]
Antidilutive Securities	40,000				40,000		13,481

[1] Assumes conversion of principal plus accrued interest as of March 31.