Note 10 - Warranty Costs (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Accrued Liabilities [Table Text Block]

	Three Months Ended March 31,
	2013			2012
	(Dollars in thousands)
Warranty accrual, beginning of the period	$	15,514		$	17,572
Warranty costs accrued during the period		414			334
Warranty costs paid during the period		(796	)		(938	)
Warranty accrual, end of the period	$	15,132		$	16,968