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Securities (Details 2) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost	$ 4,322
Less Than 12 Months
Fair Value	1,668	$ 130,116
Unrealized Losses	(23)	(1,288)
More Than 12 Months
Fair Value	353,077	405,894
Unrealized Losses	(6,453)	(13,926)
Total
Fair Value	354,745	536,010
Unrealized Losses	(6,476)	(15,214)
US Government Agencies Debt Securities [Member]
Less Than 12 Months
Fair Value	0	3,052
Unrealized Losses	0	(4)
More Than 12 Months
Fair Value	4,926	11,356
Unrealized Losses	(191)	(467)
Total
Fair Value	4,926	14,408
Unrealized Losses	(191)	(471)
Mortgage Backed Securities - Residential
Less Than 12 Months
Fair Value	98	39,997
Unrealized Losses	(1)	(553)
More Than 12 Months
Fair Value	119,293	111,423
Unrealized Losses	(1,553)	(3,477)
Total
Fair Value	119,391	151,420
Unrealized Losses	(1,554)	(4,030)
Collateralized Mortgage Obligations
Less Than 12 Months
Fair Value	196	52,838
Unrealized Losses	0	(455)
More Than 12 Months
Fair Value	211,827	241,373
Unrealized Losses	(4,468)	(8,969)
Total
Fair Value	212,023	294,211
Unrealized Losses	(4,468)	(9,424)
State and Municipal Obligations
Less Than 12 Months
Fair Value	1,374	34,229
Unrealized Losses	(22)	(276)
More Than 12 Months
Fair Value	17,031	41,742
Unrealized Losses	(241)	(1,013)
Total
Fair Value	18,405	75,971
Unrealized Losses	$ (263)	$ (1,289)

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