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4. Net Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2018
Earnings Per Share [Abstract]  
Reconciliations of the amounts used in the computation of both basic earnings per common share and diluted earnings per common share

For the three months ended March 31, 2018                  
    Net Earnings (Dollars in thousands)     Weighted Average Number of Shares     Per Share Amount  
Basic earnings per share   $ 3,303       5,995,256     $ 0.55  
Effect of dilutive securities:                        
Restricted stock units     -       17,000          
Diluted earnings per share   $ 3,303       6,012,256     $ 0.55  

 

For the three months ended March 31, 2017                  
    Net Earnings (Dollars in thousands)     Weighted Average Number of Shares     Per Share Amount  
Basic earnings per share   $ 2,205       5,970,006     $ 0.37  
Effect of dilutive securities:                        
Restricted stock units     -       92,140          
Diluted earnings per share   $ 2,205       6,062,146     $ 0.36