Note 3 - Upsher-Smith (USL) Agreement (Detail) (USD $)	3 Months Ended		92 Months Ended			3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Dec. 31, 2012	Apr. 30, 2004	Mar. 31, 2013 USL [Member]	Mar. 31, 2012 USL [Member]	Nov. 30, 2002 USL [Member]
Finite-Lived License Agreements, Gross					$ 18,700,000			$ 10,000,000
Sales Revenue, Goods, Net		646,147	49,269,000			0	646,000
Royalty Revenue	84,960	348,744	27,499,000			84,000	349,000
Accounts Receivable, Gross, Current						10,000
Deferred Revenue				$ 400,000