Note 2 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Schedule of Product Warranty Liability [Table Text Block]

	Year ended December 31,
	2013			2012
Balance at the beginning of the year	$	159		$	100
Accruals for warranties issued		60			143
Settlements made during the year (in cash or in kind)		(144	)		(84	)
Balance at the end of the year	$	75		$	159