Note 11 - Warranty Accrual (Tables)

9 Months Ended

Sep. 30, 2018

Notes Tables

Schedule of Product Warranty Liability [Table Text Block]

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2018			2017			2018			2017
	(Dollars in thousands)
Balance at beginning of period	$	25,666		$	20,965		$	21,909		$	20,678
Expense provisions		3,757			2,448			10,104			7,691
Cash payments		(2,798	)		(2,263	)		(8,494	)		(7,269	)
Adjustments		-			(425	)		3,106			(375	)
Balance at end of period	$	26,625		$	20,725		$	26,625		$	20,725