Regulatory Matters (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Bancorp
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital, Actual, Amount	$ 305,224	$ 287,435
Total Capital (to risk-weighted assets), Actual, Ratio	14.93%	14.91%
Total Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 201,943	$ 178,323
Total Capital (to risk-weighted assets), Minimum Capital for Capital Adequacy Purposes, Ratio	9.875%	9.25%
Total Capital, Minimum Capital to be Well Capitalized, Amount	$ 204,499	$ 192,782
Total Capital (to risk-weighted assets), Minimum to be Well Capitalized, Ratio	10.00%	10.00%
Tier 1 Risk Based Capital, Actual, Amount	$ 288,445	$ 270,710
Tier 1 Risk Based Capital (to risk-weighted assets), Actual, Ratio	14.10%	14.04%
Tier 1 Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 161,043	$ 139,767
Tier 1 Risk Based Capital (to risk-weighted assets), Minimum Capital for Capital Adequacy Purposes, Ratio	7.875%	7.25%
Tier 1 Risk Based Capital, Minimum Capital to be Well Capitalized, Amount	$ 163,599	$ 154,225
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	$ 288,445	$ 270,710
Tier 1 Leverage Capital (to average assets), Actual, Ratio	11.54%	12.13%
Tier 1 Leverage Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 100,011	$ 89,285
Tier 1 Leverage Capital (to average assets), Minimum Capital for Capital Adequacy Purposes, Ratio	4.00%	4.00%
Tier 1 Leverage Capital, Actual, Amount	$ 125,013	$ 111,607
Tier 1 Leverage Capital (to average assets), Minimum Capital to be Well Capitalized, Ratio	5.00%	5.00%
Tier 1 Common Equity	$ 285,805	$ 265,119
Tier 1 Common Equity To Average Assets	13.98%	13.75%
Tier 1 Common Equity Required for Capital Adequacy	$ 130,368	$ 110,849
Tier 1 Common Equity Required for Capital Adequacy to Average Assets	6.375%	5.75%
Tier 1 Common Equity Required to be Well Capitalized	$ 132,925	$ 125,308
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	$ 285,969	$ 283,885
Total Capital (to risk-weighted assets), Actual, Ratio	13.98%	14.73%
Total Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 201,927	$ 178,281
Total Capital (to risk-weighted assets), Minimum Capital for Capital Adequacy Purposes, Ratio	9.875%	9.25%
Total Capital, Minimum Capital to be Well Capitalized, Amount	$ 204,483	$ 192,737
Total Capital (to risk-weighted assets), Minimum to be Well Capitalized, Ratio	10.00%	10.00%
Tier 1 Risk Based Capital, Actual, Amount	$ 269,191	$ 267,160
Tier 1 Risk Based Capital (to risk-weighted assets), Actual, Ratio	13.16%	13.86%
Tier 1 Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 161,031	$ 139,734
Tier 1 Risk Based Capital (to risk-weighted assets), Minimum Capital for Capital Adequacy Purposes, Ratio	7.875%	7.25%
Tier 1 Risk Based Capital, Minimum Capital to be Well Capitalized, Amount	$ 163,587	$ 154,189
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	$ 269,191	$ 267,160
Tier 1 Leverage Capital (to average assets), Actual, Ratio	10.77%	11.97%
Tier 1 Leverage Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 99,994	$ 89,275
Tier 1 Leverage Capital (to average assets), Minimum Capital for Capital Adequacy Purposes, Ratio	4.00%	4.00%
Tier 1 Leverage Capital, Actual, Amount	$ 124,992	$ 111,593
Tier 1 Leverage Capital (to average assets), Minimum Capital to be Well Capitalized, Ratio	5.00%	5.00%
Tier 1 Common Equity	$ 269,191	$ 267,160
Tier 1 Common Equity To Average Assets	13.16%	13.86%
Tier 1 Common Equity Required for Capital Adequacy	$ 130,358	$ 110,824
Tier 1 Common Equity Required for Capital Adequacy to Average Assets	6.375%	5.75%
Tier 1 Common Equity Required to be Well Capitalized	$ 132,914	$ 125,279
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 To Average Assets

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The amount of total capital as defined in the regulations.

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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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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 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 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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