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18. Earnings Per Common Share (Tables)
12 Months Ended
Dec. 31, 2015
Earnings per common share:  
Reconciliation of the weighted average number of shares of Common Stock used in the calculation of basic and diluted earnings per common share
    Year ended  
    December 31,  
    2015     2014  
             
Weighted average number of shares outstanding     7,331,114       7,287,657  
Effect of dilutive securities, common share equivalents     46,766       69,305  
                 
Weighted average number of shares outstanding, used for computing diluted earnings per share     7,377,880       7,356,962