Note 9 - Accrued Expenses (Tables)

9 Months Ended

Sep. 30, 2013

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

	September 30, 2013		December 31, 2012
Payroll and benefits	$	2,558,293	$	2,477,833
Professional fees		389,672		642,853
Clinical trial costs		190,362		102,414
Restructuring costs		208,207		933,732
Other		1,881,865		1,680,212
Total	$	5,228,399	$	5,837,044