Regulatory Matters (Actual And Required Capital Ratios) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Parent Company [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage, Actual Amount	$ 381,473	$ 344,283
Tier 1 leverage, Actual Ratio	9.00%	8.16%
Tier 1 leverage, Well Capitalized, Amount	$ 211,880	$ 210,949
Tier 1 leverage, Well Capitalized, Ratio	5.00%	5.00%
CET1 capital, Actual Amount	$ 364,145	$ 326,955
CET1 capital, Actual Ratio	10.31%	9.70%
CET1 capital, Well Capitalized, Amount	$ 229,663	$ 219,150
CET1 capital, Well Capitalized, Ratio	6.50%	6.50%
Tier 1 capital, Actual Amount	$ 381,473	$ 344,283
Tier 1 capital, Actual Ratio	10.80%	10.21%
Tier 1 capital, Well Capitalized, Amount	$ 282,663	$ 269,723
Tier 1 capital, Well Capitalized, Ratio	8.00%	8.00%
Total risk-based capital, Actual Amount	$ 451,228	$ 417,399
Total risk-based capital, Actual Ratio	12.77%	12.38%
Total risk-based capital, Well Capitalized, Amount	$ 353,328	$ 337,154
Total risk-based capital, Well Capitalized, Ratio	10.00%	10.00%
Parent Company [Member] \| Phase-in Schedule [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage, For Capital Adequacy Purposes, Amount	$ 169,504	$ 168,759
Tier 1 leverage, For Capital Adequacy Purposes, Ratio	4.00%	4.00%
CET1 capital, For Capital Adequacy Purposes, Amount	$ 247,330	$ 214,936
CET1 capital, For Capital Adequacy Purposes, Ratio	7.00%	6.38%
Tier 1 capital, For Capital Adequacy Purposes, Amount	$ 300,329	$ 265,509
Tier 1 capital, For Capital Adequacy Purposes, Ratio	8.50%	7.88%
Total risk-based capital, For Capital Adequacy Purposes, Amount	$ 370,995	$ 332,940
Total risk-based capital, For Capital Adequacy Purposes, Ratio	10.50%	9.88%
Parent Company [Member] \| Fully Phased-in [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage, For Capital Adequacy Purposes, Amount	$ 169,504	$ 168,759
Tier 1 leverage, For Capital Adequacy Purposes, Ratio	4.00%	4.00%
CET1 capital, For Capital Adequacy Purposes, Amount	$ 247,330	$ 236,008
CET1 capital, For Capital Adequacy Purposes, Ratio	7.00%	7.00%
Tier 1 capital, For Capital Adequacy Purposes, Amount	$ 300,329	$ 286,581
Tier 1 capital, For Capital Adequacy Purposes, Ratio	8.50%	8.50%
Total risk-based capital, For Capital Adequacy Purposes, Amount	$ 370,995	$ 354,012
Total risk-based capital, For Capital Adequacy Purposes, Ratio	10.50%	10.50%
Bank [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage, Actual Amount	$ 409,031	$ 372,939
Tier 1 leverage, Actual Ratio	9.67%	8.86%
Tier 1 leverage, Well Capitalized, Amount	$ 211,486	$ 210,419
Tier 1 leverage, Well Capitalized, Ratio	5.00%	5.00%
CET1 capital, Actual Amount	$ 409,031	$ 372,939
CET1 capital, Actual Ratio	11.61%	11.09%
CET1 capital, Well Capitalized, Amount	$ 229,055	$ 218,488
CET1 capital, Well Capitalized, Ratio	6.50%	6.50%
Tier 1 capital, Actual Amount	$ 409,031	$ 372,939
Tier 1 capital, Actual Ratio	11.61%	11.09%
Tier 1 capital, Well Capitalized, Amount	$ 281,914	$ 268,908
Tier 1 capital, Well Capitalized, Ratio	8.00%	8.00%
Total risk-based capital, Actual Amount	$ 439,514	$ 406,853
Total risk-based capital, Actual Ratio	12.47%	12.10%
Total risk-based capital, Well Capitalized, Amount	$ 352,392	$ 336,135
Total risk-based capital, Well Capitalized, Ratio	10.00%	10.00%
Bank [Member] \| Phase-in Schedule [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage, For Capital Adequacy Purposes, Amount	$ 169,189	$ 168,335
Tier 1 leverage, For Capital Adequacy Purposes, Ratio	4.00%	4.00%
CET1 capital, For Capital Adequacy Purposes, Amount	$ 246,674	$ 214,286
CET1 capital, For Capital Adequacy Purposes, Ratio	7.00%	6.38%
Tier 1 capital, For Capital Adequacy Purposes, Amount	$ 299,533	$ 264,706
Tier 1 capital, For Capital Adequacy Purposes, Ratio	8.50%	7.88%
Total risk-based capital, For Capital Adequacy Purposes, Amount	$ 370,011	$ 331,933
Total risk-based capital, For Capital Adequacy Purposes, Ratio	10.50%	9.88%
Bank [Member] \| Fully Phased-in [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage, For Capital Adequacy Purposes, Amount	$ 169,189	$ 168,335
Tier 1 leverage, For Capital Adequacy Purposes, Ratio	4.00%	4.00%
CET1 capital, For Capital Adequacy Purposes, Amount	$ 246,674	$ 235,294
CET1 capital, For Capital Adequacy Purposes, Ratio	7.00%	7.00%
Tier 1 capital, For Capital Adequacy Purposes, Amount	$ 299,533	$ 285,715
Tier 1 capital, For Capital Adequacy Purposes, Ratio	8.50%	8.50%
Total risk-based capital, For Capital Adequacy Purposes, Amount	$ 370,011	$ 352,942
Total risk-based capital, For Capital Adequacy Purposes, Ratio	10.50%	10.50%

Tangible Capital Required to be Well Capitalized

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Tangible Capital Required to be Well Capitalized, to Tangible 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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Tangible capital as defined in the regulations (generally includes outstanding stock plus retained earnings) for banking institutions subject to Office of Thrift Supervision (OTS) capital requirements.

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The minimum amount of tangible capital required under the regulatory framework for prompt corrective action.

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The minimum amount of Tangible Capital divided by tangible assets (Tangible Capital Ratio) as defined in the regulations.

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Tangible Capital divided by Tangible assets as defined in the regulations.

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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 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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