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Net Income Per Common Share
 6 Months Ended
Mar. 31, 2022
Earnings Per Share [Abstract]  
Net Income Per Common Share NET INCOME PER COMMON SHARE
Basic net income per common share is computed by dividing net income to common shareholders by the weighted average number of common shares outstanding during the period without considering any dilutive items.  Diluted net income per common share is computed by dividing net income to common shareholders by the weighted average number of common shares and common stock equivalents for items that are dilutive, net of shares assumed to be repurchased using the treasury stock method at the average share price for the Company’s common stock during the period.  Common stock equivalents arise from the assumed conversion of outstanding stock options to purchase common stock.  

Information regarding the calculation of basic and diluted net income per common share for the three and six months ended March 31, 2022 and 2021 is as follows (dollars in thousands, except per share amounts):
 Three Months Ended March 31,Six Months Ended March 31,
2022202120222021
Basic net income per common share computation  
Numerator – net income $5,327 $7,251 $10,812 $14,541 
Denominator – weighted average common shares outstanding8,337,407 8,331,121 8,346,839 8,322,210 
Basic net income per common share$0.64 $0.87 $1.30 $1.75 
Diluted net income per common share computation  
Numerator – net income$5,327 $7,251 $10,812 $14,541 
Denominator – weighted average common shares outstanding8,337,407 8,331,121 8,346,839 8,322,210 
Effect of dilutive stock options (1)84,468 113,677 88,697 106,385 
Weighted average common shares outstanding - assuming dilution8,421,875 8,444,798 8,435,536 8,428,595 
Diluted net income per common share$0.63 $0.86 $1.28 $1.73 
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(1) For the three and six months ended March 31, 2022, average options to purchase 204,398 and 207,256 shares of common stock, respectively, were outstanding but not included in the computation of diluted net income per common share, because their effect would have been anti-dilutive. For the three and six months ended March 31, 2021, average options to purchase 135,590 and 136,631 shares of common stock, respectively, were outstanding but not included in the computation of diluted net income per common share, because their effect would have been anti-dilutive.