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Shareholders' Equity (Narrative) (Details) - USD ($)
$ in Thousands
 12 Months Ended
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