Consolidated Statements of Shareholders' Equity (Unaudited) - 6 months ended Apr. 02, 2016 - USD ($) shares in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Oct. 03, 2015	18,466
Balance at Oct. 03, 2015	$ 18,466,000	$ 60,967,000	$ 122,928,000	$ (2,146,000)	$ 200,215,000
Net earnings			$ 13,860,000	$ 0	$ 13,860,000
Stock options exercised, net (in shares)	290				343
Stock options exercised, net	$ 290,000	2,962,000			$ 3,252,000
Vesting of restricted stock units (in shares)	30
Vesting of restricted stock units	$ 30,000	(30,000)
Compensation expense associated with stock-based plans		1,276,000			$ 1,276,000
Excess tax benefits from stock-based compensation		824,000			824,000
Restricted stock units and stock options surrendered for withholding taxes payable		(629,000)			(629,000)
Cash dividends declared			$ (19,722,000)		(19,722,000)
Balance (in shares) at Apr. 02, 2016	18,786
Balance at Apr. 02, 2016	$ 18,786,000	$ 65,370,000	$ 117,066,000	$ (2,146,000)	$ 199,076,000