Note 5 - Property and Equipment (Tables)

3 Months Ended

Mar. 31, 2015

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

	March 31,			December 31,
	2015			2014
Equipment (useful life 3 - 15 years)	$	1,529		$	1,495
Tooling (useful life 2 - 5 years)		864			865
Furniture and fixtures (useful life 5 years)		92			92
Computer software (useful life 3 years)		448			452
Leasehold improvements (the shorter of useful life or lease life)		569			572
Construction in progress		85			18
Property and equipment at cost		3,587			3,494
Less: accumulated depreciation		(3,048	)		(3,015	)
Property and equipment, net	$	539		$	479