Note 8 - Accrued Expenses (Tables)

6 Months Ended

Jun. 30, 2014

Payables and Accruals [Abstract]

Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]

	June 30,		December 31,
	2014		2013
Accrued personnel related costs	$	642	$	1,063
Accrued interest		-		50
Accrued research and development expenses		918		713
Other accrued expenses		256		355
	$	1,816	$	2,181