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Investment Securities (Details) - Schedule of unrealized losses not recognized in income - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Investment securities available-for-sale:    
Investment Securities Available-for-Sale: Total, Fair Value $ 278,357 $ 167,343
Investment Securities Available-for-Sale: Total, Unrealized Losses (4,470) (3,283)
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value 168,028 134,954
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses (1,631) (2,483)
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value 110,329 32,389
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses (2,839) (800)
Federal Agency Obligations [Member]    
Investment securities available-for-sale:    
Investment Securities Available-for-Sale: Total, Fair Value 39,813 22,672
Investment Securities Available-for-Sale: Total, Unrealized Losses (416) (271)
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value 28,407 21,416
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses (213) (262)
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value 11,406 1,256
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses (203) (9)
Residential Mortgage Backed Securities [Member]    
Investment securities available-for-sale:    
Investment Securities Available-for-Sale: Total, Fair Value 148,574 50,136
Investment Securities Available-for-Sale: Total, Unrealized Losses (1,948) (944)
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value 117,556 49,817
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses (1,146) (937)
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value 31,018 319
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses (802) (7)
Commercial Mortgage Backed Securities [Member]    
Investment securities available-for-sale:    
Investment Securities Available-for-Sale: Total, Fair Value 1,198  
Investment Securities Available-for-Sale: Total, Unrealized Losses (3)  
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value 1,198  
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses (3)  
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value  
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses  
Obligation Of U.S. States And Political Subdivisions [Member]    
Investment securities available-for-sale:    
Investment Securities Available-for-Sale: Total, Fair Value 57,685 52,307
Investment Securities Available-for-Sale: Total, Unrealized Losses (1,334) (931)
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value 17,909 52,307
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses (246) (931)
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value 39,776
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses (1,088)
Trust Preferred Securities [Member]    
Investment securities available-for-sale:    
Investment Securities Available-for-Sale: Total, Fair Value 1,469 1,427
Investment Securities Available-for-Sale: Total, Unrealized Losses (111) (151)
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value 1,469 1,427
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses (111) (151)
Corporate Bonds And Notes [Member]    
Investment securities available-for-sale:    
Investment Securities Available-for-Sale: Total, Fair Value 11,074 15,930
Investment Securities Available-for-Sale: Total, Unrealized Losses (271) (375)
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value 1,965 7,671
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses (21) (265)
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value 9,109 8,259
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses (250) (110)
Asset-backed Securities [Member]    
Investment securities available-for-sale:    
Investment Securities Available-for-Sale: Total, Fair Value 7,428 13,404
Investment Securities Available-for-Sale: Total, Unrealized Losses (37) (286)
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value 993 3,743
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses (2) (88)
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value 6,435 9,661
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses (35) (198)
Other Securities [Member]    
Investment securities available-for-sale:    
Investment Securities Available-for-Sale: Total, Fair Value 11,116 11,467
Investment Securities Available-for-Sale: Total, Unrealized Losses (350) (325)
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value 11,116 11,467
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses $ (350) $ (325)