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Shareholders' Equity (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 30, 2023 | Oct. 01, 2022 | Oct. 02, 2021
Class A Common Stock |  |  |
Class of Stock |  |  |
Common stock voting rights | one-tenth |  |
Minimum percentage of the board of directors to be elected by class of shares | 25.00% |  |
Class B Common Stock |  |  |
Class of Stock |  |  |
Common stock voting rights | one |  |
Common stock conversion basis | one-for-one |  |
Preferred Stock |  |  |
Class of Stock |  |  |
Preferred stock, shares authorized | 10,000,000 |  |
2014 Long Term Incentive Plan |  |  |
Class of Stock |  |  |
Number of shares authorized for awards available for grant | 677,923 |  |
Share Repurchase Program - November 2020 | Class A and Class B Common Stock |  |  |
Class of Stock |  |  |
Stock Repurchase Program, Number of Shares Authorized to be Repurchased | 3,000,000 |  |
Stock repurchased during period, shares | 97,849 | 486,923 | 243,147
Stock repurchased during period, value | $ 7,697 | $ 35,626 | $ 19,253
Stock repurchase program, remaining number of shares authorized to be repurchased | 2,172,081 |  |
Share Repurchase Program | Class A and Class B Common Stock |  |  |
Class of Stock |  |  |
Stock repurchased during period, shares |  |  | 155,963
Stock repurchased during period, value |  |  | $ 10,193
Stock repurchase program, remaining number of shares authorized to be repurchased | 0 |  |

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