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Consolidated Statements of Operations (Unaudited) (Parentheticals) - $ / shares
3 Months Ended 9 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Income Statement [Abstract]        
Weighted average diluted earnings per common share $ 1.29 $ 4.26 $ 6.11 $ 9.34
Weighted average common shares outstanding - diluted 2,019,786 2,090,691 2,047,127 2,095,591