Note 2 - Summary of Significant Accounting Policies (Details) (USD $)	9 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended	12 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 Wholesale [Member] Customer Concentration Risk [Member] Sales Revenue, Product Line [Member]	Jun. 30, 2013 Wholesale [Member] Customer Concentration Risk [Member] Sales Revenue, Product Line [Member]	Sep. 30, 2013 Takeda [Member] Sales Revenue, Goods, Net [Member]	Sep. 30, 2012 Takeda [Member] Sales Revenue, Goods, Net [Member]	Sep. 30, 2013 Takeda [Member] Sales Revenue, Goods, Net [Member]	Sep. 30, 2012 Takeda [Member] Sales Revenue, Goods, Net [Member]	Sep. 30, 2013 Takeda [Member] Accounts Receivable, Unbilled Accounts Receivable and Product Royalties Receivable [Member]	Dec. 31, 2012 Takeda [Member] Accounts Receivable, Unbilled Accounts Receivable and Product Royalties Receivable [Member]	Sep. 30, 2013 Abbott [Member] Sales Revenue, Goods, Net [Member]	Sep. 30, 2012 Abbott [Member] Sales Revenue, Goods, Net [Member]	Sep. 30, 2013 Abbott [Member] Sales Revenue, Goods, Net [Member]	Sep. 30, 2012 Abbott [Member] Sales Revenue, Goods, Net [Member]	Sep. 30, 2013 RESCULA [Member]	Sep. 30, 2013 Product for Sale [Member]	Sep. 30, 2013 Sample Inventory [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Restricted Cash and Cash Equivalents (in Dollars)	$ 28,500,000	$ 18,900,000
Allowance for Doubtful Accounts Receivable (in Dollars)	426,000	280,000
Inventory Write-down (in Dollars)															4,500,000	3,000,000	1,500,000
NumberOfWholesalersInConcentrationPercentage	3
Concentration Risk, Percentage			98.20%	95.50%	73.90%	98.70%	82.90%	98.00%	90.90%	98.00%	24.50%	0.10%	16.40%	1.10%
Cash, FDIC Insured Amount (in Dollars)	$ 15,700,000	$ 15,600,000
PercentageOfDepositWithinFederallyInsuredLimits	17.30%	18.40%