Note 4 - Warranty Reserves (Tables)

6 Months Ended

Jun. 30, 2014

Product Warranties Disclosures [Abstract]

Schedule of Product Warranty Liability [Table Text Block]

	Three Months Ended June 30,						Six Months Ended June 30,
	2014			2013			2014			2013
(In thousands)
Warranty accrual at beginning of period	$	544		$	760		$	662		$	770
Charged to expense		51			133			87			189
Amounts written off, net of recoveries		(139	)		(48	)		(288	)		(116	)
Foreign currency adjustment		—			6			(5	)		8
Warranty accrual at end of period	$	456		$	851		$	456		$	851