Note 7 - Accrued Liabilities (Tables)

6 Months Ended

Jun. 30, 2017

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

	June 30, 2017		December 31, 2016
Amounts due to contract research organizations and other contractual agreements	$	804,762	$	1,115,193
Accrued payroll and related benefits		1,841,208		1,066,751
Accrued professional fees		245,900		259,550
Accrued interest on notes payable		–		22,241
Other		20,021		20,021
Total	$	2,911,891	$	2,483,756