Securities (Details 2) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	$ 56,579	$ 121,893
Unrealized Losses, Less Than 12 Months	(294)	(1,464)
Fair Value, 12 Months or Longer	71,027	86,038
Unrealized Losses, 12 Months or Longer	(1,561)	(2,499)
Fair Value, Total	127,606	207,931
Unrealized Losses, Total	(1,855)	(3,963)
Small Business Administration
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	10,037	0
Unrealized Losses, Less Than 12 Months	(19)	0
Fair Value, 12 Months or Longer	8,961	19,237
Unrealized Losses, 12 Months or Longer	(142)	(457)
Fair Value, Total	18,998	19,237
Unrealized Losses, Total	(161)	(457)
Corporate bonds
Investment securities with unrealized losses
Fair Value, Less Than 12 Months		102
Unrealized Losses, Less Than 12 Months		(1)
Fair Value, 12 Months or Longer		478
Unrealized Losses, 12 Months or Longer		(4)
Fair Value, Total		580
Unrealized Losses, Total		(5)
U.S. Treasury and U.S. government sponsored entities
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	1,668	6,044
Unrealized Losses, Less Than 12 Months	(3)	(51)
Fair Value, 12 Months or Longer	200	199
Unrealized Losses, 12 Months or Longer	0	(1)
Fair Value, Total	1,868	6,243
Unrealized Losses, Total	(3)	(52)
State and political subdivisions
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	14,045	22,016
Unrealized Losses, Less Than 12 Months	(90)	(167)
Fair Value, 12 Months or Longer	566	12,635
Unrealized Losses, 12 Months or Longer	(9)	(245)
Fair Value, Total	14,611	34,651
Unrealized Losses, Total	(99)	(412)
Mortgage-backed securities - residential
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	23,062	79,301
Unrealized Losses, Less Than 12 Months	(124)	(1,044)
Fair Value, 12 Months or Longer	48,845	40,794
Unrealized Losses, 12 Months or Longer	(940)	(1,091)
Fair Value, Total	71,907	120,095
Unrealized Losses, Total	(1,064)	(2,135)
Collateralized mortgage obligations - residential
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	7,655	14,342
Unrealized Losses, Less Than 12 Months	(21)	(169)
Fair Value, 12 Months or Longer	12,455	12,695
Unrealized Losses, 12 Months or Longer	(470)	(701)
Fair Value, Total	20,110	27,037
Unrealized Losses, Total	(491)	(870)
Equity securities
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	112	88
Unrealized Losses, Less Than 12 Months	(37)	(32)
Fair Value, 12 Months or Longer	0	0
Unrealized Losses, 12 Months or Longer	0	0
Fair Value, Total	112	88
Unrealized Losses, Total	$ (37)	$ (32)