Fair Value Measurements (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Investment securities	$ 578,317	$ 589,268
Loans held for sale	25,873	25,096
Other equity investments	218	218
Assets measured at a fair value on a recurring basis	609,029	616,663
Liabilities measured at a fair value on a recurring basis	97	10
Interest Rate Swap [Member]
Derivative asset	4,779
Derivative liability		2,201
Interest Rate Swap [Member] \| Derivative Financial Instruments, Assets [Member]
Derivative asset	4,788	2,256
Interest Rate Swap [Member] \| Derivative Financial Instruments, Liability [Member]
Derivative liability	13
US Agency Securities [Member]
Investment securities	192,091	195,984
Residential Mortgage Backed Securities [Member]
Investment securities	329,240	317,836
Loans held for sale	25,873	25,096
Municipal Bonds [Member]
Investment securities	48,605	62,057
Corporate Bonds [Member]
Investment securities	8,163	13,173
Mortgage Banking Derivative [Member]
Derivative asset	51	43
Derivative liability	84	10
Fair Value, Inputs, Level 2 [Member]
Investment securities	576,599	587,550
Loans held for sale	25,873	25,096
Assets measured at a fair value on a recurring basis	607,260	614,902
Liabilities measured at a fair value on a recurring basis	13
Fair Value, Inputs, Level 2 [Member] \| Interest Rate Swap [Member]
Derivative asset	4,788	2,256
Derivative liability	13
Fair Value, Inputs, Level 2 [Member] \| US Agency Securities [Member]
Investment securities	192,091	195,984
Fair Value, Inputs, Level 2 [Member] \| Residential Mortgage Backed Securities [Member]
Investment securities	329,240	317,836
Fair Value, Inputs, Level 2 [Member] \| Municipal Bonds [Member]
Investment securities	48,605	62,057
Fair Value, Inputs, Level 2 [Member] \| Corporate Bonds [Member]
Investment securities	6,663	11,673
Fair Value, Inputs, Level 3 [Member]
Investment securities	1,718	1,718
Other equity investments	218	218
Assets measured at a fair value on a recurring basis	1,769	1,761
Liabilities measured at a fair value on a recurring basis	84	10
Fair Value, Inputs, Level 3 [Member] \| Corporate Bonds [Member]
Investment securities	1,500	1,500
Fair Value, Inputs, Level 3 [Member] \| Mortgage Banking Derivative [Member]
Derivative asset	$ 51	$ 43

Fair value portion of other equity investments.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Aggregation of the liabilities reported on the balance sheet measured at fair value on a recurring basis by the entity.

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