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Investment Securities (Details 1)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
USD ($)
Number
Dec. 31, 2014
USD ($)
Number
Schedule of Available-for-sale Securities [Line Items]    
No. of securities | Number 212 189
Fair value, Less than 12 months $ 106,304 $ 56,580
Unrealized losses, Less than 12 months (877) (249)
Fair value, 12 months or longer 12,101 59,873
Unrealized losses, 12 months or longer (198) (1,261)
Total, Fair value 118,405 116,453
Total, Unrealized losses $ (1,075) $ (1,510)
U. S. treasury securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
No. of securities | Number 2 1
Fair value, Less than 12 months $ 3,542 $ 2,960
Unrealized losses, Less than 12 months (1) (1)
Fair value, 12 months or longer 0 0
Unrealized losses, 12 months or longer 0 0
Total, Fair value 3,542 2,960
Total, Unrealized losses $ (1) $ (1)
U.S. federal agency obligations [Member]    
Schedule of Available-for-sale Securities [Line Items]    
No. of securities | Number 18 14
Fair value, Less than 12 months $ 23,015 $ 7,361
Unrealized losses, Less than 12 months (163) (14)
Fair value, 12 months or longer 1,976 11,958
Unrealized losses, 12 months or longer (24) (260)
Total, Fair value 24,991 19,319
Total, Unrealized losses $ (187) $ (274)
Municipal obligations, tax exempt [Member]    
Schedule of Available-for-sale Securities [Line Items]    
No. of securities | Number 47 71
Fair value, Less than 12 months $ 11,328 $ 13,927
Unrealized losses, Less than 12 months (53) (66)
Fair value, 12 months or longer 2,132 7,329
Unrealized losses, 12 months or longer (18) (114)
Total, Fair value 13,460 21,256
Total, Unrealized losses $ (71) $ (180)
Municipal obligations, taxable [Member]    
Schedule of Available-for-sale Securities [Line Items]    
No. of securities | Number 105 74
Fair value, Less than 12 months $ 38,605 $ 14,797
Unrealized losses, Less than 12 months (494) (92)
Fair value, 12 months or longer 5,068 14,827
Unrealized losses, 12 months or longer (87) (258)
Total, Fair value 43,673 29,624
Total, Unrealized losses $ (581) $ (350)
Agency mortgage-backed securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
No. of securities | Number 40 29
Fair value, Less than 12 months $ 29,814 $ 17,535
Unrealized losses, Less than 12 months (166) (76)
Fair value, 12 months or longer 2,925 25,759
Unrealized losses, 12 months or longer (69) (629)
Total, Fair value 32,739 43,294
Total, Unrealized losses $ (235) $ (705)