Note 10 - Warranty Costs (Tables)

6 Months Ended

Jun. 30, 2013

Product Warranty Disclosure [Text Block]

Schedule of Accrued Liabilities [Table Text Block]

	Six Months Ended June 30,
	2013			2012
	(Dollars in thousands)
Warranty accrual, beginning of the period	$	15,514		$	17,572
Warranty costs accrued during the period		1,182			656
Warranty costs paid during the period		(1,772	)		(1,635	)
Warranty accrual, end of the period	$	14,924		$	16,593