Fair Value Measurements (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
ASSETS
Trading	$ 1,598	$ 1,324
Trading Securities, Equity	20,133	0
Available for sale	442,929	447,498
Loans held for sale (at fair value)	9,614	4,768
Derivative Asset, Fair Value, Gross Asset	26,392	17,318
Recurring fair value measurements
LIABILITIES
TOTAL RECURRING FAIR VALUE MEASUREMENTS	476,478	455,373
Recurring fair value measurements \| Trading Securities [Member]
ASSETS
Trading	1,598	1,324
Recurring fair value measurements \| Equity securities
ASSETS
Trading Securities, Equity	20,133
Available for sale		20,584
Recurring fair value measurements \| U.S. Government agency securities
ASSETS
Available for sale	32,719	35,430
Recurring fair value measurements \| Agency mortgage-backed securities
ASSETS
Available for sale	214,989	215,764
Recurring fair value measurements \| Agency collateralized mortgage obligations
ASSETS
Available for sale	145,147	122,012
Recurring fair value measurements \| Municipal Bonds [Member]
ASSETS
Available for sale	1,996	2,274
Recurring fair value measurements \| Single issuer trust preferred securities issued by banks and insurers
ASSETS
Available for sale	1,329	2,016
Recurring fair value measurements \| Pooled trust preferred securities issued by banks and insurers
ASSETS
Available for sale	1,751	1,640
Recurring fair value measurements \| Small Business Administration Pooled Securities [Member]
ASSETS
Available for sale	44,998	47,778
Recurring fair value measurements \| Loans held for sale
ASSETS
Loans held for sale (at fair value)	9,614	4,768
Recurring fair value measurements \| Derivative Financial Instruments, Assets [Member]
ASSETS
Derivative Asset, Fair Value, Gross Asset	26,703	17,476
Recurring fair value measurements \| Derivative instruments
LIABILITIES
Liabilities, Fair Value Disclosure, Recurring	24,499	15,693
Nonrecurring fair value measurements
LIABILITIES
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS	35,977	34,179
Nonrecurring fair value measurements \| Collateral dependent impaired loans
ASSETS
Assets, Fair Value Disclosure, Nonrecurring	35,732	33,567
Nonrecurring fair value measurements \| Other real estate owned and other foreclosed assets
ASSETS
Assets, Fair Value Disclosure, Nonrecurring	245	612
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring fair value measurements
LIABILITIES
TOTAL RECURRING FAIR VALUE MEASUREMENTS	21,731	21,908
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring fair value measurements \| Trading Securities [Member]
ASSETS
Trading	1,598	1,324
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring fair value measurements \| Equity securities
ASSETS
Trading Securities, Equity	20,133
Available for sale		20,584
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring fair value measurements \| Municipal Bonds [Member]
ASSETS
Available for sale		0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring fair value measurements \| Small Business Administration Pooled Securities [Member]
ASSETS
Available for sale	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Nonrecurring fair value measurements
LIABILITIES
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS	0	0
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements
LIABILITIES
TOTAL RECURRING FAIR VALUE MEASUREMENTS	452,996	431,825
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Equity securities
ASSETS
Trading Securities, Equity	0
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| U.S. Government agency securities
ASSETS
Available for sale	32,719	35,430
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Agency mortgage-backed securities
ASSETS
Available for sale	214,989	215,764
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Agency collateralized mortgage obligations
ASSETS
Available for sale	145,147	122,012
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Municipal Bonds [Member]
ASSETS
Available for sale	1,996	2,274
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Single issuer trust preferred securities issued by banks and insurers
ASSETS
Available for sale	1,329	2,016
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Small Business Administration Pooled Securities [Member]
ASSETS
Available for sale	44,998	47,778
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Loans held for sale
ASSETS
Available for sale	9,614	4,768
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Derivative Financial Instruments, Assets [Member]
ASSETS
Derivative Asset, Fair Value, Gross Asset	26,703	17,476
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Derivative instruments
LIABILITIES
Liabilities, Fair Value Disclosure, Recurring	24,499	15,693
Significant Other Observable Inputs (Level 2) \| Nonrecurring fair value measurements
LIABILITIES
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS	0	0
Significant Unobservable Inputs (Level 3) \| Recurring fair value measurements
LIABILITIES
TOTAL RECURRING FAIR VALUE MEASUREMENTS	1,751	1,640
Significant Unobservable Inputs (Level 3) \| Recurring fair value measurements \| Equity securities
ASSETS
Trading Securities, Equity	0
Significant Unobservable Inputs (Level 3) \| Recurring fair value measurements \| Municipal Bonds [Member]
ASSETS
Available for sale		0
Significant Unobservable Inputs (Level 3) \| Recurring fair value measurements \| Pooled trust preferred securities issued by banks and insurers
ASSETS
Available for sale	1,751	1,640
Significant Unobservable Inputs (Level 3) \| Recurring fair value measurements \| Small Business Administration Pooled Securities [Member]
ASSETS
Available for sale	0	0
Significant Unobservable Inputs (Level 3) \| Nonrecurring fair value measurements
LIABILITIES
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS	35,977	34,179
Significant Unobservable Inputs (Level 3) \| Nonrecurring fair value measurements \| Collateral dependent impaired loans
ASSETS
Assets, Fair Value Disclosure, Nonrecurring	35,732	33,567
Significant Unobservable Inputs (Level 3) \| Nonrecurring fair value measurements \| Other real estate owned and other foreclosed assets
ASSETS
Assets, Fair Value Disclosure, Nonrecurring	$ 245	$ 612

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Amount, after allowance for bad debt, of mortgage loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.

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