Note 2 - Furniture and Equipment (Tables)

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

	2014			2013
Furniture and fixtures	$	542		$	600
Office equipment		1,115			1,266
Software		1,423			1,448
Laboratory equipment		5,786			5,721
Leased equipment		63			63
Leasehold improvements		5,303			5,316
		14,232			14,414
Less accumulated depreciation and amortization		(14,025	)		(14,108	)
Furniture and equipment, net	$	207		$	306