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BANK CREDIT ARRANGEMENTS (Details) - USD ($)
Dec. 25, 2021
Dec. 26, 2020
Bank Credit Arrangements    
Outstanding amount $ 13,439,000 $ 35,147,000
Short-term borrowings    
Bank Credit Arrangements    
Total line of credit facility for short-term borrowings 137,818,000  
Outstanding amount $ 13,439,000 $ 35,147,000
Weighted average interest rate on short-term borrowings 6.31%  
Unused and available borrowings $ 124,379,000