Regulatory Matters - Schedule of Actual and Required Capital Amounts and Ratios (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Regulatory Matters
Tier-1 Leverage	$ 49,918	$ 49,433
Tier 1 Leverage, ratio (as a percent)	11.99%	12.03%
Common Equity Tier 1	$ 49,918	$ 49,433
Common Equity Tier 1, ratio (as a percent)	19.40%	19.32%
Tier 1	$ 49,918	$ 49,433
Tier 1, ratio (as a percent)	19.40%	19.32%
Total Capital	$ 52,868	$ 52,417
Total Capital, ratio (as a percent)	20.55%	20.48%
Leverage required for capital adequacy purposes	$ 16,649	$ 16,439
Leverage required for capital adequacy purposes, ratio (as a percent)	4.00%	4.00%
Common Equity Tier 1 required for capital adequacy purposes	$ 18,730	$ 18,494
Common Equity Tier 1 required for capital adequacy purposes, ratio (as a percent)	4.50%	4.50%
Tier 1 required for capital adequacy purposes	$ 24,973	$ 24,659
Tier 1 required for capital adequacy purposes, ratio (as a percent)	6.00%	6.00%
Total capital required for capital adequacy purposes	$ 33,298	$ 32,879
Total capital required for capital adequacy purposes, ratio (as a percent)	8.00%	8.00%

Common Equity Tier 1 Risk Based Capital as defined in the regulations.

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The minimum amount of Common Equity Tier 1 Risk Based Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum amount of Common Equity Tier 1 Risk Based Capital ratio (Common Equity Tier 1 capital divided by risk weighted assets) required for capital adequacy purposes in the regulatory framework for prompt corrective action.

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Common Equity Tier 1 Capital divided by risk weighted assets as defined by regulations.

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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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Total Capital divided by risk weighted 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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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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Tier 1 capital divided by risk weighted assets as defined by regulations.

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