Fair Value Measurements (Details) - USD ($)	Jun. 30, 2016	Dec. 31, 2015
ASSETS
Trading Securities	$ 799,000	$ 356,000
Securities - available for sale	389,824,000	367,249,000
Loans held for sale	12,927,000	5,990,000
Derivative Asset, Fair Value, Gross Asset	47,582,000	23,072,000
Recurring fair value measurements
LIABILITIES
TOTAL RECURRING FAIR VALUE MEASUREMENTS	401,010,000	370,587,000
Recurring fair value measurements \| Trading Securities [Member]
ASSETS
Trading Securities	799,000	356,000
Recurring fair value measurements \| U.S. Government agency securities
ASSETS
Securities - available for sale	27,941,000	30,215,000
Recurring fair value measurements \| Agency mortgage-backed securities
ASSETS
Securities - available for sale	194,448,000	210,937,000
Recurring fair value measurements \| Agency collateralized mortgage obligations
ASSETS
Securities - available for sale	103,970,000	63,584,000
Recurring fair value measurements \| Municipal Bonds [Member]
ASSETS
Securities - available for sale	4,396,000	4,659,000
Recurring fair value measurements \| Single issuer trust preferred securities issued by banks and insurers
ASSETS
Securities - available for sale	2,264,000	2,792,000
Recurring fair value measurements \| Pooled trust preferred securities issued by banks and insurers
ASSETS
Securities - available for sale	1,506,000	1,572,000
Recurring fair value measurements \| Small Business Administration Pooled Securities [Member]
ASSETS
Securities - available for sale	40,464,000	40,449,000
Recurring fair value measurements \| Equity securities
ASSETS
Securities - available for sale	14,835,000	13,041,000
Recurring fair value measurements \| Loans held for sale
ASSETS
Loans held for sale	12,927,000	5,990,000
Recurring fair value measurements \| Derivative Financial Instruments, Assets [Member]
ASSETS
Derivative Asset, Fair Value, Gross Asset	48,118,000	23,305,000
Recurring fair value measurements \| Derivative instruments
LIABILITIES
Liabilities, Fair Value Disclosure, Recurring	50,658,000	26,313,000
Nonrecurring fair value measurements
LIABILITIES
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS	7,051,000	6,757,000
Nonrecurring fair value measurements \| Collateral dependent impaired loans
ASSETS
Assets, Fair Value Disclosure, Nonrecurring	5,206,000	4,598,000
Nonrecurring fair value measurements \| Other real estate owned and other foreclosed assets
ASSETS
Assets, Fair Value Disclosure, Nonrecurring	1,845,000	2,159,000
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring fair value measurements
LIABILITIES
TOTAL RECURRING FAIR VALUE MEASUREMENTS	15,634,000	13,397,000
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring fair value measurements \| Trading Securities [Member]
ASSETS
Trading Securities	799,000	356,000
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring fair value measurements \| Municipal Bonds [Member]
ASSETS
Securities - 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
Securities - available for sale	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring fair value measurements \| Equity securities
ASSETS
Securities - available for sale	14,835,000	13,041,000
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	383,870,000	355,618,000
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| U.S. Government agency securities
ASSETS
Securities - available for sale	27,941,000	30,215,000
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Agency mortgage-backed securities
ASSETS
Securities - available for sale	194,448,000	210,937,000
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Agency collateralized mortgage obligations
ASSETS
Securities - available for sale	103,970,000	63,584,000
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Municipal Bonds [Member]
ASSETS
Securities - available for sale	4,396,000	4,659,000
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Single issuer trust preferred securities issued by banks and insurers
ASSETS
Securities - available for sale	2,264,000	2,792,000
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Small Business Administration Pooled Securities [Member]
ASSETS
Securities - available for sale	40,464,000	40,449,000
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Loans held for sale
ASSETS
Securities - available for sale	12,927,000	5,990,000
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Derivative Financial Instruments, Assets [Member]
ASSETS
Derivative Asset, Fair Value, Gross Asset	48,118,000	23,305,000
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Derivative instruments
LIABILITIES
Liabilities, Fair Value Disclosure, Recurring	50,658,000	26,313,000
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	1,506,000	1,572,000
Significant Unobservable Inputs (Level 3) \| Recurring fair value measurements \| U.S. Government agency securities
ASSETS
Securities - available for sale
Significant Unobservable Inputs (Level 3) \| Recurring fair value measurements \| Municipal Bonds [Member]
ASSETS
Securities - available for sale		0
Significant Unobservable Inputs (Level 3) \| Recurring fair value measurements \| Pooled trust preferred securities issued by banks and insurers
ASSETS
Securities - available for sale	1,506,000	1,572,000
Significant Unobservable Inputs (Level 3) \| Recurring fair value measurements \| Small Business Administration Pooled Securities [Member]
ASSETS
Securities - available for sale	0	0
Significant Unobservable Inputs (Level 3) \| Nonrecurring fair value measurements
LIABILITIES
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS	7,051,000	6,757,000
Significant Unobservable Inputs (Level 3) \| Nonrecurring fair value measurements \| Collateral dependent impaired loans
ASSETS
Assets, Fair Value Disclosure, Nonrecurring	5,206,000	4,598,000
Significant Unobservable Inputs (Level 3) \| Nonrecurring fair value measurements \| Other real estate owned and other foreclosed assets
ASSETS
Assets, Fair Value Disclosure, Nonrecurring	$ 1,845,000	$ 2,159,000

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Assets and liabilities, fair value disclosure recurring.

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

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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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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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Amount of investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading.

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