Note 2 - Basis of Presentation and Recent Accounting Pronouncements (Detail) - Effects of Adjustments to Condensed Financial Statements - Balance Sheets (USD $)	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011	Dec. 31, 2010	Sep. 30, 2008
Balance sheet data:
Prepaid expenses and other current assets	$ 1,004,436	$ 862,761
Other assets	415,049	960,781
Total assets	12,032,499	18,195,169
Embedded conversion feature liability	14,980,000	12,470,000	38,630,000	22,860,000	21,190,000
Notes payable - Victory Park, net	40,376,818	32,683,456
Total liabilities	91,422,755	83,892,333
Additional paid-in capital	116,439,489	115,691,958
Accumulated deficit	(196,783,894)	(182,341,278)
Stockholders' deficit	(79,390,256)	(65,697,164)
Scenario, Previously Reported [Member]
Balance sheet data:
Prepaid expenses and other current assets	663,063	862,761
Other assets	415,049	440,307
Total assets	11,691,126	17,674,695
Notes payable - Victory Park, net	41,503,773	34,073,626
Total liabilities	77,569,710	72,812,503
Additional paid-in capital	133,163,489	132,415,958
Accumulated deficit	(199,996,222)	(188,505,922)
Stockholders' deficit	$ (65,878,584)	$ (55,137,808)