Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total		Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the year (in shares) at Sep. 28, 2019			19,124
Balance at the beginning of the year at Sep. 28, 2019	$ 484,059		$ 4,781	$ 182,422	$ 315,329	$ (18,473)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income	8,903				5,306	3,597
Exercise of stock options (in shares)			1
Exercise of stock options	41			41
Stock-based compensation (in shares)			49
Stock-based compensation	2,328		$ 12	2,316
Common stock purchased and retired (in shares)			(18)
Common stock purchased and retired	(835)		$ (4)	(831)
Dividends	(5,748)				(5,748)
Balance at the end of the year (in shares) at Dec. 28, 2019			19,156
Balance at the end of the year at Dec. 28, 2019	488,748		$ 4,789	183,948	314,887	(14,876)
Balance at the beginning of the year (in shares) at Oct. 03, 2020			19,264
Balance at the beginning of the year at Oct. 03, 2020	221,183	[1]	$ 4,816	189,580	31,768	(4,981)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income	6,712				1,715	4,997
Exercise of stock options (in shares)			78
Exercise of stock options	3,791		$ 20	3,771
Stock-based compensation (in shares)			108
Stock-based compensation	2,648		$ 27	2,621
Issuance for employee stock purchase plan (in shares)			37
Issuance for employee stock purchase plan	532		$ 9	523
Common stock purchased and retired (in shares)			(39)
Common stock purchased and retired	(1,903)		$ (10)	(1,893)
Balance at the end of the year (in shares) at Jan. 02, 2021			19,448
Balance at the end of the year at Jan. 02, 2021	$ 232,963		$ 4,862	$ 194,602	$ 33,483	$ 16

[1] The Consolidated Balance Sheet as of October 3, 2020 has been derived from the audited consolidated financial statements at that date.The accompanying Notes to Consolidated Financial Statements (Unaudited) are an integral part of these consolidated financial statements.