Note 11 - Warranty Accrual (Tables)

6 Months Ended

Jun. 30, 2016

Notes Tables

Schedule of Product Warranty Liability [Table Text Block]

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2016			2015			2016			2015
	(Dollars in thousands)
Balance at beginning of period	$	16,852		$	17,761		$	15,328		$	18,346
Expense provisions		2,305			1,329			3,757			2,444
Cash payments		(2,190	)		(1,624	)		(5,105	)		(3,324	)
Adjustments		250			(213	)		3,237			(213	)
Balance at end of period	$	17,217		$	17,253		$	17,217		$	17,253