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Debt and Other Borrowings - Unsecured Revolving Credit Facilities (Details)
12 Months Ended
Mar. 18, 2020
USD ($)
Jan. 22, 2019
USD ($)
Mar. 27, 2006
USD ($)
Mar. 25, 2022
USD ($)
Mar. 27, 2020
USD ($)
Mar. 26, 2021
USD ($)
Sep. 16, 2020
Jun. 26, 2020
USD ($)
Nov. 26, 2019
PHP (₱)
Nov. 20, 2019
PHP (₱)
Dec. 05, 2001
USD ($)
Line of Credit Facility [Line Items]                      
Outstanding borrowings       $ 25,000,000   $ 25,000,000          
Unsecured Revolving Credit Facilities | Line-of-Credit Agreement Expiring January 22, 2021 | Line of Credit                      
Line of Credit Facility [Line Items]                      
Maximum borrowing capacity   $ 25,000                  
Outstanding balance         $ 25,000,000 25,000,000          
Outstanding borrowings               $ 25,000,000      
Collateral, secured period       1 year              
Collateral fees, amount       $ 25,000              
Unsecured Revolving Credit Facilities | Line-of-Credit Agreement Expiring January 22, 2021 | Line of Credit | LIBOR                      
Line of Credit Facility [Line Items]                      
Basis spread on variable rate   0.40%                  
Unsecured Revolving Credit Facilities | Line-of-Credit Agreement Due at Various Times During Fiscal Year 2021 | Line of Credit                      
Line of Credit Facility [Line Items]                      
Maximum borrowing capacity     $ 10,000                
Outstanding balance         $ 10,000,000            
Interest rate at period end         1.70%   2.50%        
Proceeds from unsecured credit facilities         $ 10,000,000            
Unsecured Revolving Credit Facilities | Line-of-Credit Agreement Due at Various Times During Fiscal Year 2021 | Line of Credit | LIBOR                      
Line of Credit Facility [Line Items]                      
Basis spread on variable rate     1.00%                
Unsecured Revolving Credit Facilities | Line-of-Credit Agreement Maturing June 18, 2020 | Line of Credit                      
Line of Credit Facility [Line Items]                      
Maximum borrowing capacity                     $ 8,000,000
Outstanding balance         $ 8,000,000            
Interest rate at period end         1.90%            
Proceeds from unsecured credit facilities $ 8,000,000                    
Unsecured Revolving Credit Facilities | Line-of-Credit Agreement Expiring August 31, 2021 | Line of Credit                      
Line of Credit Facility [Line Items]                      
Maximum borrowing capacity       1,145,000         ₱ 60,000,000    
Outstanding balance       0   0          
Unsecured Revolving Credit Facilities | Line-of-Credit Agreement Expiring June 30, 2021 | Line of Credit                      
Line of Credit Facility [Line Items]                      
Maximum borrowing capacity       1,431,000           ₱ 75,000,000  
Outstanding balance       $ 0   $ 0