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Net Income Per Common Share (Tables)
 3 Months Ended
Dec. 31, 2021
Earnings Per Share [Abstract]  
Schedule of Earnings per Share
Information regarding the calculation of basic and diluted net income per common share for the three months ended December 31, 2021 and 2020 is as follows (dollars in thousands, except per share amounts):
 Three Months Ended December 31,
20212020
Basic net income per common share computation
Numerator – net income $5,485 $7,290 
Denominator – weighted average common shares outstanding8,356,066 8,313,493 
Basic net income per common share$0.66 $0.88 
Diluted net income per common share computation
Numerator – net income$5,485 $7,290 
Denominator – weighted average common shares outstanding8,356,066 8,313,493 
Effect of dilutive stock options (1)92,834 99,251 
Weighted average common shares outstanding - assuming dilution8,448,900 8,412,744 
Diluted net income per common share$0.65 $0.87 
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(1) For the three months ended December 31, 2021 and 2020, average options to purchase 210,052 and 137,650 shares of common stock, respectively, were outstanding but not included in the computation of diluted net income per share, because their effect would have been anti-dilutive.