Note 4 - Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2015

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

	March 31,		December 31,
	2015		2014
Accrued professional fees	$	269	$	117
Accrued clinical trial costs		126		-
Accrued vacation		97		86
Accrued payroll and other related expenses		45		-
Accrued interest		14		-
Other accruals		32		20
Total accrued liabilities	$	583	$	223