Regulatory Matters (Actual And Required Capital Ratios) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Parent Company [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage, Actual Amount	$ 344,283	$ 322,680
Tier 1 leverage, Actual Ratio	8.16%	8.13%
Tier 1 leverage, Well Capitalized, Amount	$ 210,949	$ 198,387
Tier 1 leverage, Well Capitalized, Ratio	5.00%	5.00%
CET1 capital, Actual Amount	$ 326,955	$ 305,351
CET1 capital, Actual Ratio	9.70%	10.16%
CET1 capital, Well Capitalized, Amount	$ 219,150	$ 195,368
CET1 capital, Well Capitalized, Ratio	6.50%	6.50%
Tier 1 capital, Actual Amount	$ 344,283	$ 322,680
Tier 1 capital, Actual Ratio	10.21%	10.74%
Tier 1 capital, Well Capitalized, Amount	$ 269,723	$ 240,452
Tier 1 capital, Well Capitalized, Ratio	8.00%	8.00%
Total risk-based capital, Actual Amount	$ 417,399	$ 396,483
Total risk-based capital, Actual Ratio	12.38%	13.19%
Total risk-based capital, Well Capitalized, Amount	$ 337,154	$ 300,565
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	$ 168,759	$ 158,710
Tier 1 leverage, For Capital Adequacy Purposes, Ratio	4.00%	4.00%
CET1 capital, For Capital Adequacy Purposes, Amount	$ 214,936	$ 172,825
CET1 capital, For Capital Adequacy Purposes, Ratio	6.38%	5.75%
Tier 1 capital, For Capital Adequacy Purposes, Amount	$ 265,509	$ 217,910
Tier 1 capital, For Capital Adequacy Purposes, Ratio	7.88%	7.25%
Total risk-based capital, For Capital Adequacy Purposes, Amount	$ 332,940	$ 278,023
Total risk-based capital, For Capital Adequacy Purposes, Ratio	9.88%	9.25%
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	$ 168,759	$ 158,710
Tier 1 leverage, For Capital Adequacy Purposes, Ratio	4.00%	4.00%
CET1 capital, For Capital Adequacy Purposes, Amount	$ 236,008	$ 210,396
CET1 capital, For Capital Adequacy Purposes, Ratio	7.00%	7.00%
Tier 1 capital, For Capital Adequacy Purposes, Amount	$ 286,581	$ 255,481
Tier 1 capital, For Capital Adequacy Purposes, Ratio	8.50%	8.50%
Total risk-based capital, For Capital Adequacy Purposes, Amount	$ 354,012	$ 315,594
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	$ 372,939	$ 346,532
Tier 1 leverage, Actual Ratio	8.86%	8.75%
Tier 1 leverage, Well Capitalized, Amount	$ 210,419	$ 197,965
Tier 1 leverage, Well Capitalized, Ratio	5.00%	5.00%
CET1 capital, Actual Amount	$ 372,939	$ 346,532
CET1 capital, Actual Ratio	11.09%	11.57%
CET1 capital, Well Capitalized, Amount	$ 218,488	$ 194,688
CET1 capital, Well Capitalized, Ratio	6.50%	6.50%
Tier 1 capital, Actual Amount	$ 372,939	$ 346,532
Tier 1 capital, Actual Ratio	11.09%	11.57%
Tier 1 capital, Well Capitalized, Amount	$ 268,908	$ 239,616
Tier 1 capital, Well Capitalized, Ratio	8.00%	8.00%
Total risk-based capital, Actual Amount	$ 406,853	$ 381,204
Total risk-based capital, Actual Ratio	12.10%	12.73%
Total risk-based capital, Well Capitalized, Amount	$ 336,135	$ 299,520
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	$ 168,335	$ 158,372
Tier 1 leverage, For Capital Adequacy Purposes, Ratio	4.00%	4.00%
CET1 capital, For Capital Adequacy Purposes, Amount	$ 214,286	$ 172,224
CET1 capital, For Capital Adequacy Purposes, Ratio	6.38%	5.75%
Tier 1 capital, For Capital Adequacy Purposes, Amount	$ 264,706	$ 217,152
Tier 1 capital, For Capital Adequacy Purposes, Ratio	7.88%	7.25%
Total risk-based capital, For Capital Adequacy Purposes, Amount	$ 331,933	$ 277,056
Total risk-based capital, For Capital Adequacy Purposes, Ratio	9.88%	9.25%
Bank [Member] \| Fully Phased-in [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage, For Capital Adequacy Purposes, Amount	$ 168,335	$ 158,372
Tier 1 leverage, For Capital Adequacy Purposes, Ratio	4.00%	4.00%
CET1 capital, For Capital Adequacy Purposes, Amount	$ 235,294	$ 209,664
CET1 capital, For Capital Adequacy Purposes, Ratio	7.00%	7.00%
Tier 1 capital, For Capital Adequacy Purposes, Amount	$ 285,715	$ 254,592
Tier 1 capital, For Capital Adequacy Purposes, Ratio	8.50%	8.50%
Total risk-based capital, For Capital Adequacy Purposes, Amount	$ 352,942	$ 314,496
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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