Securities (Details 2) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	$ 20,350	$ 37,766
Unrealized Losses, Less Than 12 Months	(84)	(322)
Fair Value, 12 Months or Longer	36,211	222,033
Unrealized Losses, 12 Months or Longer	(506)	(6,995)
Fair Value, Total	56,561	259,799
Unrealized Losses, Total	(590)	(7,317)
U.S. Treasury and U.S. government sponsored entities
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	0	648
Unrealized Losses, Less Than 12 Months	0	(2)
Fair Value, 12 Months or Longer	1,071	5,065
Unrealized Losses, 12 Months or Longer	(4)	(100)
Fair Value, Total	1,071	5,713
Unrealized Losses, Total	(4)	(102)
State and political subdivisions
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	0	23,569
Unrealized Losses, Less Than 12 Months	0	(201)
Fair Value, 12 Months or Longer	0	64,174
Unrealized Losses, 12 Months or Longer	0	(1,692)
Fair Value, Total	0	87,743
Unrealized Losses, Total	0	(1,893)
Mortgage-backed securities - residential
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	13,701	13,002
Unrealized Losses, Less Than 12 Months	(56)	(114)
Fair Value, 12 Months or Longer	24,691	126,200
Unrealized Losses, 12 Months or Longer	(276)	(4,053)
Fair Value, Total	38,392	139,202
Unrealized Losses, Total	(332)	(4,167)
Collateralized mortgage obligations - residential
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	1,379	20
Unrealized Losses, Less Than 12 Months	(6)	(1)
Fair Value, 12 Months or Longer	10,346	14,003
Unrealized Losses, 12 Months or Longer	(225)	(774)
Fair Value, Total	11,725	14,023
Unrealized Losses, Total	(231)	(775)
Corporate bonds
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	0	516
Unrealized Losses, Less Than 12 Months	0	(4)
Fair Value, 12 Months or Longer	100	672
Unrealized Losses, 12 Months or Longer	(1)	(14)
Fair Value, Total	100	1,188
Unrealized Losses, Total	(1)	(18)
Small Business Administration
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	5,270	11
Unrealized Losses, Less Than 12 Months	(22)	0
Fair Value, 12 Months or Longer	3	11,919
Unrealized Losses, 12 Months or Longer	0	(362)
Fair Value, Total	5,273	11,930
Unrealized Losses, Total	$ (22)	$ (362)