Note 7 - Other Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2014

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

	December 31, 2014		December 31, 2013
Amounts due to Contract Research Organizations and other contractual agreements	$	857,730	$	1,711,934
Accrued payroll and related benefits		961,440		900,434
Accrued professional fees		502,300		63,500
Accrued interest on notes payable		96,875	–
Other		38,020		31,785
Total	$	2,456,365	$	2,707,653