Regulatory Matters (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Bancorp
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital, Actual, Amount	$ 247,453	$ 227,269
Total Capital (to risk-weighted assets), Actual, Ratio	14.32%	13.37%
Total Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 149,039	$ 135,996
Total Capital (to risk-weighted assets), Minimum Capital for Capital Adequacy Purposes, Ratio	8.625%	8.00%
Total Capital, Minimum Capital to be Well Capitalized, Amount	$ 172,799	$ 169,995
Total Capital (to risk-weighted assets), Minimum to be Well Capitalized, Ratio	10.00%	10.00%
Tier 1 Risk Based Capital, Actual, Amount	$ 231,111	$ 211,521
Tier 1 Risk Based Capital (to risk-weighted assets), Actual, Ratio	13.37%	12.44%
Tier 1 Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 114,479	$ 101,997
Tier 1 Risk Based Capital (to risk-weighted assets), Minimum Capital for Capital Adequacy Purposes, Ratio	6.625%	6.00%
Tier 1 Risk Based Capital, Minimum Capital to be Well Capitalized, Amount	$ 138,239	$ 135,996
Tier 1 Risk Based Capital (to risk-weighted assets), Minimum Capital to be Well Capitalized, Ratio	8.00%	8.00%
Tier 1 Leverage Capital, Amount, Actual	$ 231,111	$ 211,521
Tier 1 Leverage Capital (to average assets), Actual, Ratio	11.39%	10.67%
Tier 1 Leverage Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 81,189	$ 79,296
Tier 1 Leverage Capital (to average assets), Minimum Capital for Capital Adequacy Purposes, Ratio	4.00%	4.00%
Tier 1 Leverage Capital, Actual, Amount	$ 101,486	$ 99,120
Tier 1 Leverage Capital (to average assets), Minimum Capital to be Well Capitalized, Ratio	5.00%	5.00%
Tier 1 Common Equity	$ 225,925	$ 206,724
Tier 1 Common Equity To Average Assets	13.07%	12.16%
Tier 1 Common Equity Required for Capital Adequacy	$ 88,559	$ 76,498
Tier 1 Common Equity Required for Capital Adequacy to Average Assets	5.125%	4.50%
Tier 1 Common Equity Required to be Well Capitalized	$ 112,319	$ 110,497
Tier 1 Common Equity Required to be Well Capitalized to Average Assets	6.50%	6.50%
The Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital, Actual, Amount	$ 243,468	$ 222,830
Total Capital (to risk-weighted assets), Actual, Ratio	14.09%	13.11%
Total Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 149,016	$ 135,968
Total Capital (to risk-weighted assets), Minimum Capital for Capital Adequacy Purposes, Ratio	8.625%	8.00%
Total Capital, Minimum Capital to be Well Capitalized, Amount	$ 172,772	$ 169,960
Total Capital (to risk-weighted assets), Minimum to be Well Capitalized, Ratio	10.00%	10.00%
Tier 1 Risk Based Capital, Actual, Amount	$ 227,127	$ 207,082
Tier 1 Risk Based Capital (to risk-weighted assets), Actual, Ratio	13.15%	12.18%
Tier 1 Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 114,462	$ 101,976
Tier 1 Risk Based Capital (to risk-weighted assets), Minimum Capital for Capital Adequacy Purposes, Ratio	6.625%	6.00%
Tier 1 Risk Based Capital, Minimum Capital to be Well Capitalized, Amount	$ 138,218	$ 135,968
Tier 1 Risk Based Capital (to risk-weighted assets), Minimum Capital to be Well Capitalized, Ratio	8.00%	8.00%
Tier 1 Leverage Capital, Amount, Actual	$ 227,127	$ 207,082
Tier 1 Leverage Capital (to average assets), Actual, Ratio	11.19%	10.45%
Tier 1 Leverage Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 81,176	$ 79,268
Tier 1 Leverage Capital (to average assets), Minimum Capital for Capital Adequacy Purposes, Ratio	4.00%	4.00%
Tier 1 Leverage Capital, Actual, Amount	$ 101,469	$ 99,085
Tier 1 Leverage Capital (to average assets), Minimum Capital to be Well Capitalized, Ratio	5.00%	5.00%
Tier 1 Common Equity	$ 227,127	$ 207,082
Tier 1 Common Equity To Average Assets	13.15%	12.18%
Tier 1 Common Equity Required for Capital Adequacy	$ 88,546	$ 76,482
Tier 1 Common Equity Required for Capital Adequacy to Average Assets	5.125%	4.50%
Tier 1 Common Equity Required to be Well Capitalized	$ 112,302	$ 110,474
Tier 1 Common Equity Required to be Well Capitalized to Average Assets	6.50%	6.50%

Tier One Common Equity

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Tier One Common Equity Required for Capital Adequacy to Average Assets

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Tier One Common Equity Required to be Well Capitalized

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Tier One Common Equity Required to be Well Capitalized to Average Assets

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Tier One Common Equity To Average Assets

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The amount of total capital as defined in the regulations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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

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The amount of Tier 1 Leverage Capital required to be categorized as well capitalized divided by average assets as defined in the regulatory framework for prompt corrective action.

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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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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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