Note 13 - Technology Development and Licensing Agreements (Detail) (USD $)	0 Months Ended		1 Months Ended	3 Months Ended
	Jan. 18, 2013	Dec. 05, 2008	Jan. 31, 2011	Mar. 31, 2013	Dec. 31, 2012
Proceeds from License Fees Received	$ 5,000,000	$ 2,500,000
Deferred Revenue				5,000,000
Deferred Revenue Amortization Period				10
Other Accrued Liabilities, Current				1,097,445	1,254,979
Proceeds from Issuance of Convertible Preferred Stock			4,000,000
Reduction in Milestone Payments			20.00%
Hisun [Member]
Other Accrued Liabilities, Current				326,000
Convertible Preferred Stock [Member]
Proceeds from Issuance of Convertible Preferred Stock			2,000,000
Yakult Agreement [Member]
Proceeds from Issuance of Convertible Preferred Stock			$ 2,000,000