Regulatory Matters - Bank's actual capital amounts and ratios (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Regulatory Matters [Abstract]
Total risk-based capital (to risk-weighted assets), Actual Amount	$ 40,252us-gaap_Capital	$ 38,766us-gaap_Capital
Total risk-based capital (to risk-weighted assets), Actual Ratio	18.81%us-gaap_CapitalToRiskWeightedAssets	18.15%us-gaap_CapitalToRiskWeightedAssets
Total risk-based capital (to risk-weighted assets), Minimum Capital Requirement Amount	17,119	17,089
Total risk-based capital (to risk-weighted assets), Minimum Capital Requirement Ratio	8.00%	8.00%
Total risk-based capital (to risk-weighted assets), Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount	21,399	21,361
Total risk-based capital (to risk-weighted assets), Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	10.00%	10.00%
Tier I capital (to risk-weighted assets), Actual Amount	37,574us-gaap_TierOneRiskBasedCapital	36,087us-gaap_TierOneRiskBasedCapital
Tier I capital (to risk-weighted assets), Actual Ratio	17.56%	16.89%
Tier I capital (to risk-weighted assets), Minimum Capital Requirement Amount	8,560	8,544
Tier I capital (to risk-weighted assets), Minimum Capital Requirement Ratio	4.00%	4.00%
Tier I capital (to risk-weighted assets), Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount	12,839	12,817
Tier I capital (to risk-weighted assets), Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	6.00%	6.00%
Tier I capital (to average assets) Actual Amount	37,574us-gaap_TierOneLeverageCapital	36,087us-gaap_TierOneLeverageCapital
Tier I capital (to average assets), Actual Ratio	12.25%	11.51%
Tier I capital (to average assets), Minimum Capital Requirement Amount	12,269	12,546
Tier I capital (to average assets), Minimum Capital Requirement Ratio	4.00%	4.00%
Tier I capital (to average assets), Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount	15,336	15,682
Tier I capital (to average assets), Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	5.00%	5.00%
Tangible capital (to adjusted tangible assets), Actual Amount	37,574us-gaap_TangibleCapital	36,087us-gaap_TangibleCapital
Tangible capital (to adjusted tangible assets), Actual Ratio	12.25%us-gaap_TangibleCapitalToTangibleAssets	11.51%us-gaap_TangibleCapitalToTangibleAssets
Tangible capital (to adjusted tangible assets), Minimum Capital Requirement Amount	$ 4,601	$ 4,705
Tangible capital (to adjusted tangible assets), Minimum Capital Requirement Ratio	1.50%	1.50%

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The amount of total capital as defined in the regulations.

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-Name Accounting Standards Codification

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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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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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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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