Note 9 - Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2016

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

	March 31, 2016		December 31, 201 5
Amounts due to contract research organizations and other contractual agreements	$	852,243	$	571,615
Accrued payroll and related benefits		760,341		947,078
Accrued professional fees		411,600		319,200
Accrued interest on notes payable		53,117		62,136
Other		19,740		19,740
Total	$	2,097,041	$	1,919,769