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Note H - Leases (Details Textual) - USD ($)
3 Months Ended
Mar. 30, 2025
Mar. 31, 2024
Operating Lease, Payments $ 393,000 $ 365,000
Operating Lease, Weighted Average Remaining Lease Term (Year) 19 years  
Operating Lease, Weighted Average Discount Rate, Percent 4.70%  
Operating Lease, Lease Income, Lease Payments $ 569,000 $ 551,000