Consolidated Statements of Shareholders' Equity (Unaudited) - 3 months ended Dec. 31, 2016 - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Oct. 01, 2016	18,976
Balance at Oct. 01, 2016	$ 18,976	$ 67,817	$ 139,314	$ (1,541)	$ 224,566
Net earnings			4,460		$ 4,460
Stock options exercised, net (in shares)	7				22
Stock options exercised, net	$ 7	28			$ 35
Vesting of restricted stock units (in shares)	2
Vesting of restricted stock units	$ 2	(2)
Compensation expense associated with stock-based plans		257			257
Excess tax benefits from stock-based compensation		100			100
Restricted stock units and stock options surrendered for withholding taxes payable		(144)			(144)
Cash dividends declared			(24,298)		(24,298)
Balance (in shares) at Dec. 31, 2016	18,985
Balance at Dec. 31, 2016	$ 18,985	$ 68,056	$ 119,476	$ (1,541)	$ 204,976