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QUARTERLY FINANCIAL DATA (UNAUDITED)
12 Months Ended
Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]  
QUARTERLY FINANCIAL DATA (UNAUDITED) QUARTERLY FINANCIAL DATA (UNAUDITED)
   Earnings Per Share
(Dollars in thousands)Interest IncomeNet Interest IncomeIncome Before TaxesNet IncomeBasicDiluted
2019      
     First quarter$19,623  $13,972  $3,989  $3,192  $0.26  $0.26  
     Second quarter20,470  14,529  20,526  15,377  1.31  1.18  
     Third quarter21,038  15,034  5,668  4,327  0.36  0.35  
     Fourth quarter21,230  15,865  5,406  4,095  0.34  0.32  

   Earnings Per Share
(Dollars in thousands)Interest IncomeNet Interest IncomeIncome Before TaxesNet IncomeBasicDiluted
2018      
     First quarter$15,054  $11,465  $3,291  $2,594  $0.24  $0.23  
     Second quarter16,944  12,655  3,596  2,831  0.25  0.25  
     Third quarter18,176  13,524  4,549  3,579  0.30  0.29  
     Fourth quarter19,586  14,410  3,940  2,999  0.25  0.24