v3.23.1
Note 8 - Bank Credit Facility (Details Textual)
3 Months Ended 15 Months Ended
Feb. 25, 2023
USD ($)
Feb. 25, 2023
USD ($)
Bank One [Member]    
Line of Credit Facility, Maximum Borrowing Capacity $ 25,000,000 $ 25,000,000
Letters of Credit Outstanding, Amount 3,731,000 3,731,000
Line of Credit Facility, Remaining Borrowing Capacity $ 21,269,000 $ 21,269,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage   0.25%
Debt Instrument, Covenant, Fixed Charge Coverage Ratio 1.4  
Debt Instrument, Covenant, Lease-adjusted Leverage Ratio 3.0  
Debt Instrument, Covenant, Minimum Tangible Net Worth $ 140,000 $ 140,000
Bank One [Member] | London Interbank Offered Rate (LIBOR) [Member]    
Debt Instrument, Basis Spread on Variable Rate   1.50%
Bank Two [Member]    
Letters of Credit Outstanding, Amount $ 250,000 $ 250,000