Note 6 - Inventory (Detail) (USD $)								3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 Finished and Unfinished Inventory Related to Discontinued Products [Member]	Mar. 31, 2013 Impact of Expected Delay of FDA Approval [Member]	Mar. 31, 2013 Additional Pre-launch Inventory of Product Manufactured for Third-Party [Member]	Mar. 31, 2013 Unapproved Inventory [Member]	Dec. 31, 2012 Unapproved Inventory [Member]	Mar. 31, 2013 Raw Materials [Member]	Mar. 31, 2013 Finished Goods [Member]
Inventory Valuation Reserves	$ 28,035,000	$ 5,231,000	$ 6,700,000	$ 5,000,000	$ 6,400,000
Unapproved Product Inventory Net						$ 6,212,000	$ 12,106,000
Inventory Turnover Period Minimum								3 years
Inventory Turnover Period Maximum								5 years	2 years