Regulatory Matters (Actual And Required Capital Ratios) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Parent Company [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage, Actual Amount	$ 265,246	$ 243,452
Tier 1 leverage, Actual Ratio	7.36%	7.41%
Tier 1 leverage, Well Capitalized, Amount	$ 180,119	$ 164,382
Tier 1 leverage, Well Capitalized, Ratio	5.00%	5.00%
CET1 capital, Actual Amount	$ 247,906	$ 226,413
CET1 capital, Actual Ratio	9.59%	9.77%
CET1 capital, Well Capitalized, Amount	$ 167,970	$ 150,705
CET1 capital, Well Capitalized, Ratio	6.50%	6.50%
Tier 1 capital, Actual Amount	$ 265,246	$ 243,452
Tier 1 capital, Actual Ratio	10.26%	10.50%
Tier 1 capital, Well Capitalized, Amount	$ 206,733	$ 185,483
Tier 1 capital, Well Capitalized, Ratio	8.00%	8.00%
Total risk-based capital, Actual Amount	$ 335,241	$ 309,527
Total risk-based capital, Actual Ratio	12.97%	13.35%
Total risk-based capital, Well Capitalized, Amount	$ 258,416	$ 231,854
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	$ 144,095	$ 131,506
Tier 1 leverage, For Capital Adequacy Purposes, Ratio	4.00%	4.00%
CET1 capital, For Capital Adequacy Purposes, Amount	$ 132,438	$ 104,334
CET1 capital, For Capital Adequacy Purposes, Ratio	5.13%	4.50%
Tier 1 capital, For Capital Adequacy Purposes, Amount	$ 171,201	$ 139,112
Tier 1 capital, For Capital Adequacy Purposes, Ratio	6.63%	6.00%
Total risk-based capital, For Capital Adequacy Purposes, Amount	$ 222,884	$ 185,483
Total risk-based capital, For Capital Adequacy Purposes, Ratio	8.63%	8.00%
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	$ 144,095	$ 131,506
Tier 1 leverage, For Capital Adequacy Purposes, Ratio	4.00%	4.00%
CET1 capital, For Capital Adequacy Purposes, Amount	$ 180,891	$ 162,297
CET1 capital, For Capital Adequacy Purposes, Ratio	7.00%	7.00%
Tier 1 capital, For Capital Adequacy Purposes, Amount	$ 219,654	$ 197,076
Tier 1 capital, For Capital Adequacy Purposes, Ratio	8.50%	8.50%
Total risk-based capital, For Capital Adequacy Purposes, Amount	$ 271,337	$ 243,446
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	$ 284,765	$ 265,487
Tier 1 leverage, Actual Ratio	7.92%	8.09%
Tier 1 leverage, Well Capitalized, Amount	$ 179,828	$ 163,985
Tier 1 leverage, Well Capitalized, Ratio	5.00%	5.00%
CET1 capital, Actual Amount	$ 284,765	$ 265,487
CET1 capital, Actual Ratio	11.06%	11.49%
CET1 capital, Well Capitalized, Amount	$ 167,432	$ 150,180
CET1 capital, Well Capitalized, Ratio	6.50%	6.50%
Tier 1 capital, Actual Amount	$ 284,765	$ 265,487
Tier 1 capital, Actual Ratio	11.06%	11.49%
Tier 1 capital, Well Capitalized, Amount	$ 206,070	$ 184,837
Tier 1 capital, Well Capitalized, Ratio	8.00%	8.00%
Total risk-based capital, Actual Amount	$ 315,699	$ 292,572
Total risk-based capital, Actual Ratio	12.26%	12.66%
Total risk-based capital, Well Capitalized, Amount	$ 257,588	$ 231,046
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	$ 143,862	$ 131,188
Tier 1 leverage, For Capital Adequacy Purposes, Ratio	4.00%	4.00%
CET1 capital, For Capital Adequacy Purposes, Amount	$ 132,014	$ 103,971
CET1 capital, For Capital Adequacy Purposes, Ratio	5.13%	4.50%
Tier 1 capital, For Capital Adequacy Purposes, Amount	$ 170,652	$ 138,628
Tier 1 capital, For Capital Adequacy Purposes, Ratio	6.63%	6.00%
Total risk-based capital, For Capital Adequacy Purposes, Amount	$ 222,170	$ 184,837
Total risk-based capital, For Capital Adequacy Purposes, Ratio	8.63%	8.00%
Bank [Member] \| Fully Phased-in [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage, For Capital Adequacy Purposes, Amount	$ 143,862	$ 131,188
Tier 1 leverage, For Capital Adequacy Purposes, Ratio	4.00%	4.00%
CET1 capital, For Capital Adequacy Purposes, Amount	$ 180,312	$ 161,733
CET1 capital, For Capital Adequacy Purposes, Ratio	7.00%	7.00%
Tier 1 capital, For Capital Adequacy Purposes, Amount	$ 218,950	$ 196,389
Tier 1 capital, For Capital Adequacy Purposes, Ratio	8.50%	8.50%
Total risk-based capital, For Capital Adequacy Purposes, Amount	$ 270,467	$ 242,599
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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-Publisher FASB
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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 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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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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