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Regulatory Matters - Schedule of Capital Amounts, Ratios and Regulatory Thresholds (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Banking and Thrift [Abstract]
Total Capital to Risk-Weighted Assets	$ 12,243	$ 12,155
Total Capital to Risk-Weighted Assets, Ratio	12.70%	15.86%
Tier I Capital to Risk-Weighted Assets	$ 11,027	$ 11,181
Tier I Capital to Risk-Weighted Assets, Ratio	11.44%	14.59%
Common equity Tier I capital to Risk-Weighted Assets	$ 11,027	$ 11,181
Common equity Tier I capital to Risk-Weighted Assets, Ratio	11.44%	14.59%
Tier I Capital to Total Assets	$ 11,027	$ 11,181
Tier I Capital to Total Assets, Ratio	9.76%	11.68%
Total Capital to Risk-Weighted Assets For Capital Adequacy Purposes	$ 7,713	$ 6,132
Total Capital to Risk-Weighted Assets For Capital Adequacy Purposes, Ratio	8.00%	8.00%
Tier I Capital to Risk-Weighted Assets For Capital Adequacy Purposes	$ 5,785	$ 4,599
Tier I Capital to Risk-Weighted Assets For Capital Adequacy Purposes, Ratio	6.00%	6.00%
Common equity Tier I capital to Risk-Weighted Assets For Capital Adequacy Purposes	$ 4,339	$ 3,449
Common equity Tier I capital to Risk-Weighted Assets For Capital Adequacy Purposes, Ratio	4.50%	4.50%
Tier I Capital to Total Assets For Capital Adequacy Purposes	$ 4,518	$ 3,828
Tier I Capital to Total Assets For Capital Adequacy Purposes, Ratio	4.00%	4.00%
Total Capital to Risk-Weighted Assets Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 9,641	$ 7,665
Total 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 Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 7,713	$ 6,132
Tier I Capital to Risk-Weighted Assets Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	8.00%	8.00%
Common equity Tier I capital to Risk-Weighted Assets Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 6,267	$ 4,983
Common equity Tier I capital to Risk-Weighted Assets Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	6.50%	6.50%
Tier I Capital to Total Assets Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 5,467	$ 4,785
Tier I Capital to Total Assets Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	5.00%	5.00%

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