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Computation of Earnings Per Common Share
 12 Months Ended
Dec. 31, 2025
Earnings Per Share [Abstract]  
Computation of Earnings Per Common Share Computation of Earnings Per Common Share
Basic earnings per common share represents income available to common shareholders divided by the weighted average number of common shares outstanding during the period. Diluted earnings per common share includes additional common shares that would have been outstanding if dilutive potential common shares had been issued. For further information related to potential common shares that may be issued relate solely to outstanding shares in the Directors Plan and grant awards under the RSP, see “Note 8 – Benefit Plans.”
Earnings per common share have been computed based on the following for the years ended December 31:
202520242023
Average number of common shares outstanding for basic calculation7,372,434 7,465,343 7,511,591 
Average potential effect of common shares in the Directors Plan (1)
— — 34,962 
Average potential effect of common shares in the RSP13,428 17,031 28,939 
Average number of common shares outstanding used to calculate diluted earnings per common share7,385,862 7,482,374 7,575,492 
Net income$18,910 $13,889 $18,167 
Earnings per common share
Basic$2.56 $1.86 $2.42 
Diluted$2.56 $1.86 $2.40 
(1) Exclusive of shares held in the Rabbi Trust