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Income Per Common Share (Details Narrative) - $ / shares
3 Months Ended 6 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Income per common share:        
Antidilutive securities excluded from computation of earnings per share 63,000 31,000 63,000 31,000
Anti-dilutive stock options have a weighted average exercise price     $ 15.32 $ 18.05