Regulatory Matters (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Regulatory Matters [Abstract]
Required Reserve Balances with Federal Reserve Bank	$ 12,200,000	$ 11,200,000
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments	4,800,000
Regulatory Capital Requirements
Repurchase of common stock warrant	0	0	1,201,000
Holding Company
Regulatory Capital Requirements
Capital	261,371,000	184,457,000
Capital to Risk Weighted Assets	15.50%	13.80%
Capital Required for Capital Adequacy	135,037,000	107,105,000
Capital Required for Capital Adequacy to Risk Weighted Assets	8.00%	8.00%
Capital Required to be Well Capitalized	168,797,000	133,881,000
Capital Required to be Well Capitalized to Risk Weighted Assets	10.00%	10.00%
Tier One Risk Based Capital	241,707,000	166,217,000
Tier One Risk Based Capital to Risk Weighted Assets	14.30%	12.40%
Tier One Risk Based Capital Required for Capital Adequacy	67,519,000	53,552,000
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	4.00%	4.00%
Tier One Risk Based Capital Required to be Well Capitalized	101,278,000	80,329,000
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	6.00%	6.00%
Tier One Leverage Capital	241,707,000	166,217,000
Tier One Leverage Capital to Average Assets	9.90%	8.50%
Tier One Leverage Capital Required for Capital Adequacy	97,470,000	78,080,000
Tier One Leverage Capital Required for Capital Adequacy to Average Assets	4.00%	4.00%
Tier One Leverage Capital Required to be Well Capitalized	121,837,000	97,600,000
Tier One Leverage Capital Required to be Well Capitalized to Average Assets	5.00%	5.00%
Risk Weighted Assets	1,687,968,000	1,338,811,000
Bank
Regulatory Capital Requirements
Capital	223,591,000	188,814,000
Capital to Risk Weighted Assets	13.30%	14.10%
Capital Required for Capital Adequacy	134,928,000	106,961,000
Capital Required for Capital Adequacy to Risk Weighted Assets	8.00%	8.00%
Capital Required to be Well Capitalized	168,660,000	133,701,000
Capital Required to be Well Capitalized to Risk Weighted Assets	10.00%	10.00%
Tier One Risk Based Capital	205,710,000	172,097,000
Tier One Risk Based Capital to Risk Weighted Assets	12.20%	12.90%
Tier One Risk Based Capital Required for Capital Adequacy	67,464,000	53,480,000
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	4.00%	4.00%
Tier One Risk Based Capital Required to be Well Capitalized	101,196,000	80,220,000
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	6.00%	6.00%
Tier One Leverage Capital	205,710,000	172,097,000
Tier One Leverage Capital to Average Assets	8.50%	8.80%
Tier One Leverage Capital Required for Capital Adequacy	97,333,000	77,830,000
Tier One Leverage Capital Required for Capital Adequacy to Average Assets	4.00%	4.00%
Tier One Leverage Capital Required to be Well Capitalized	121,666,000	97,288,000
Tier One Leverage Capital Required to be Well Capitalized to Average Assets	5.00%	5.00%
Risk Weighted Assets	$ 1,686,603,000	$ 1,337,008,000

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Repurchase of preferred shares and common stock warrant

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Required Reserve Balances with Federal Reserve Bank

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The amount of total capital as defined in the regulations.

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-Publisher FASB

-Name Accounting Standards Codification

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The minimum amount of Total Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The amount of Total Capital required to be categorized as well as capitalized under the regulatory framework for prompt corrective action.

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The Total risk based capital ratio (total capital divided by risk weighted assets) required to be categorized as "well capitalized", in the regulatory framework for prompt corrective action.

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Total Capital divided by risk weighted assets as defined in the regulations.

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Amount of risk-weighted assets as calculated in accordance with U.S. Federal regulatory capital standards.

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Amount of dividends available for payment after computation of statutory restrictions on capital surplus.

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-Name Regulation S-X (SX)

-Number 210

-Section 08

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-Article 4

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Tier 1 Leverage Capital as defined in the regulations. Also called Core Capital.

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The minimum amount of Tier 1 Leverage Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations.

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Tier 1 Leverage Capital divided by average assets as defined in the regulations.

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Tier 1 Risk Based Capital as defined in the regulations.

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The minimum amount of Tier 1 Risk Based Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum Tier One Capital Ratio (Tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The amount of Tier 1 Risk Based Capital required to be categorized as well capitalized under the regulatory framework for prompt corrective action.

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The Tier 1 capital ratio (Tier 1 capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action.

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Tier 1 capital divided by risk weighted assets as defined by regulations.

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