Warranty (Tables)

6 Months Ended

Nov. 30, 2016

Guarantees [Abstract]

Reconciliation of Accrued Warranty

A reconciliation of accrued warranty is as follows:

	Six-Months Ended
	November 30,
	2016			2015
	(Unaudited)
	(Dollars in thousands)
Balance at the beginning of the period	$	7,317		$	6,911
Accruals for warranties		3,842			3,439
Settlements made during the period		(3,280	)		(3,332	)
Balance at the end of the period		7,879			7,018
Non-current balance		2,500			2,400
Accrued warranty	$	5,379		$	4,618