Note 9 - Accrued Liabilities (Details) - Accrued Liabilities (USD $)	Sep. 30, 2014	Dec. 31, 2013
Accrued Liabilities [Abstract]
Amounts due to contract research organizations and other contractual agreements	$ 760,174	$ 1,711,934
Accrued payroll and related benefits	651,725	900,434
Accrued professional fees	249,500	63,500
Accrued interest on notes payable	93,750
Other	20,000	31,785
Total accrued liabilities	$ 1,775,149	$ 2,707,653