Consolidated Statements of Shareholders' Equity - 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 Sep. 29, 2018		19,223
Balance at Sep. 29, 2018		$ 19,223	$ 72,852	$ 151,084	$ (1,494)	$ 241,665
Net earnings				5,598		5,598
Other comprehensive (loss) income	[1]				(754)	(754)
Vesting of restricted stock units (in shares)		38
Vesting of restricted stock units		$ 38	(38)			0
Compensation expense associated with stock-based plans			2,057			2,057
Restricted stock units and stock options surrendered for withholding taxes payable			(239)			(239)
Cash dividends declared				(2,310)		$ (2,310)
Stock options exercised (in shares)						5
Balance (in shares) at Sep. 28, 2019		19,261
Balance at Sep. 28, 2019		$ 19,261	74,632	154,372	(2,248)	$ 246,017
Net earnings				19,009		19,009
Other comprehensive (loss) income	[1]				292	292
Vesting of restricted stock units (in shares)		43
Vesting of restricted stock units		$ 43	(43)			0
Compensation expense associated with stock-based plans			2,028			2,028
Restricted stock units and stock options surrendered for withholding taxes payable			(230)			(230)
Cash dividends declared				(2,313)		(2,313)
Balance (in shares) at Oct. 03, 2020		19,304
Balance at Oct. 03, 2020		$ 19,304	76,387	171,068	(1,956)	264,803
Net earnings				66,610		66,610
Other comprehensive (loss) income	[1]				(486)	(486)
Vesting of restricted stock units (in shares)		30
Vesting of restricted stock units		$ 30	(30)			0
Compensation expense associated with stock-based plans			1,988			1,988
Restricted stock units and stock options surrendered for withholding taxes payable			(665)			(665)
Cash dividends declared				(31,294)		$ (31,294)
Stock options exercised (in shares)		74				128
Stock options exercised		$ 74	1,008			$ 1,082
Balance (in shares) at Oct. 02, 2021		19,408
Balance at Oct. 02, 2021		$ 19,408	$ 78,688	$ 206,384	$ (2,442)	$ 302,038

[1] Activity within accumulated other comprehensive income (loss) is reported net of related income taxes: 2019 $239, 2020 ($93)and 2021 $154.