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Note 3 - Revenue Recognition - Changes in Contract Balances (Details) - USD ($)
9 Months Ended 12 Months Ended
Aug. 31, 2024
Nov. 30, 2023
Contracts $ 620,188 $ 692,360
Revenue Recognized during period (1,039,857) (1,685,740)
Additions during period 1,108,694 1,613,568
Contracts $ 689,025 $ 620,188