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Bank indebtedness (Tables)
12 Months Ended
Mar. 27, 2021
Debt Disclosure [Abstract]  
Summary of Company's Senior Credit Facility
The information concerning the Company’s bank indebtedness is as follows:
 
   
Fiscal Year Ended
 
   
March 27, 2021
  
March 28, 2020
 
   
(In thousands)
 
Maximum borrowing outstanding during the year
  $64,121  $64,702 
Average outstanding balance during the year
  $56,807  $56,001 
Weighted average interest rate for the year
   2.9  4.2
Effective interest rate at
year-end
   2.6  3.8