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Securities (Details 2) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	$ 113,439	$ 212,479
Unrealized Losses, Less Than 12 Months	(1,766)	(4,945)
Fair Value, 12 Months or Longer	19,759	49,393
Unrealized Losses, 12 Months or Longer	(720)	(1,666)
Fair Value, Total	133,198	261,872
Unrealized Losses, Total	(2,486)	(6,611)
Corporate bonds
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	582	786
Unrealized Losses, Less Than 12 Months	(4)	(8)
Fair Value, 12 Months or Longer	0	0
Unrealized Losses, 12 Months or Longer	0	0
Fair Value, Total	582	786
Unrealized Losses, Total	(4)	(8)
Small Business Administration
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	8,176	8,770
Unrealized Losses, Less Than 12 Months	(77)	(205)
Fair Value, 12 Months or Longer	7,336	7,890
Unrealized Losses, 12 Months or Longer	(197)	(325)
Fair Value, Total	15,512	16,660
Unrealized Losses, Total	(274)	(530)
U.S. Treasury and U.S. government sponsored entities
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	2,392	4,015
Unrealized Losses, Less Than 12 Months	(20)	(54)
Fair Value, 12 Months or Longer	0	502
Unrealized Losses, 12 Months or Longer	0	0
Fair Value, Total	2,392	4,517
Unrealized Losses, Total	(20)	(54)
State and political subdivisions
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	33,517	92,560
Unrealized Losses, Less Than 12 Months	(727)	(2,745)
Fair Value, 12 Months or Longer	291	286
Unrealized Losses, 12 Months or Longer	(7)	(15)
Fair Value, Total	33,808	92,846
Unrealized Losses, Total	(734)	(2,760)
Mortgage-backed securities - residential
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	61,503	98,348
Unrealized Losses, Less Than 12 Months	(856)	(1,823)
Fair Value, 12 Months or Longer	1,861	29,743
Unrealized Losses, 12 Months or Longer	(39)	(729)
Fair Value, Total	63,364	128,091
Unrealized Losses, Total	(895)	(2,552)
Collateralized mortgage obligations - residential
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	7,241	7,956
Unrealized Losses, Less Than 12 Months	(81)	(108)
Fair Value, 12 Months or Longer	10,271	10,972
Unrealized Losses, 12 Months or Longer	(477)	(597)
Fair Value, Total	17,512	18,928
Unrealized Losses, Total	(558)	(705)
Equity securities
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	28	44
Unrealized Losses, Less Than 12 Months	(1)	(2)
Fair Value, 12 Months or Longer	0	0
Unrealized Losses, 12 Months or Longer	0	0
Fair Value, Total	28	44
Unrealized Losses, Total	$ (1)	$ (2)

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