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Note 8 - Accrued Expenses (Tables)

6 Months Ended

Jun. 30, 2014

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

		June 30, 2014				December 31, 2013
Payroll and benefits		$	1,815,786			$	2,728,616
Clinical trial costs			1,218,510				882,651
Professional fees			442,740				383,231
Research grants			605,132				610,498
Restructuring costs			16,208				24,638
Other			776,791				908,247
Total		$	4,875,167			$	5,537,881

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Tabular disclosure of the components of accrued liabilities.

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