Note 5 - Property and Equipment (Tables)

3 Months Ended

Mar. 31, 2014

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

	March 31,			December 31,
	2014			2013
Equipment (useful life 3 - 15 years)	$	1,940		$	2,080
Tooling (useful life 2 - 5 years)		769			769
Furniture and fixtures (useful life 5 years)		98			115
Computer software (useful life 3 years)		537			521
Leasehold improvements (the shorter of useful life or lease life)		576			589
Construction in progress		-			9
Property and equipment at cost		3,920			4,083
Less: accumulated depreciation		(3,404	)		(3,547	)
Property and equipment, net	$	516		$	536