Note 4 - Warranty Reserves (Tables)

9 Months Ended

Sep. 30, 2014

Product Warranties Disclosures [Abstract]

Schedule of Product Warranty Liability [Table Text Block]

	Three Months Ended September 30,						Nine Months Ended September 30,
	2014			2013			2014			2013
(In thousands)
Warranty accrual at beginning of period	$	456		$	851		$	662		$	770
Charged to expense		78			91			166			280
Amounts written off, net of recoveries		(216	)		(55	)		(505	)		(171	)
Foreign currency adjustment		(2	)		4			(7	)		12
Warranty accrual at end of period	$	316		$	891		$	316		$	891