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Summary of Significant Accounting Policies (Details) $ in Thousands |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2019 USD ($) store | Aug. 20, 2018 | Dec. 31, 2019 USD ($) store | Dec. 31, 2018 USD ($) | Jan. 01, 2019 USD ($)
Significant Accounting Policies [Line Items] |  |  |  |  |
Number of full-service banking offices | store | 6 |  | 6 |  |
Stock split description |  |  | the Company effected a 1-for-5.5 reverse stock split, whereby each 5.5 shares of the Company's common stock were reclassified into one share of common stock. |  |
Reverse stock split ratio |  | 5.5 |  |  |
Cash exceeded federally insured limits | $ 41,600 |  | $ 41,600 |  |
Cash held, not federally insured | 37,500 |  | 37,500 |  |
Interest-bearing deposits in other financial institutions | 100 |  | 100 | $ 100 |
Minimum balance of loans individually evaluated for impairment | 250 |  | 250 |  |
Balance outstanding in joint ventures | 1,000 |  | 1,000 | 595 |
Income recognized on joint ventures |  |  | $ 57 | 69 |
Tax benefit greater than being realized on examination |  |  | 50.00% |  |
FRB regulatory reserve requirement | 5,164 |  | $ 5,164 | $ 3,502 |
Investment | 894 |  |  |  |
Maximum exposure to loss related to investments | 894 |  |  |  |
Operating lease, right-of-use assets | 1,780 |  | 1,780 |  |
Operating lease, liabilities | $ 1,960 |  | $ 1,960 |  |
ASU 2016-02 [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Operating lease, right-of-use assets |  |  |  |  | $ 2,400
Operating lease, liabilities |  |  |  |  | $ 2,400
Minimum [Member] | Buildings And Related Components [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful life |  |  | 3 years |  |
Minimum [Member] | Furniture, fixtures and equipment [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful life |  |  | 2 years |  |
Maximum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Home equity lines of credit combined with the balance of the prior mortgage liens | 89.90% |  | 89.90% |  |
Maturity of cash, deposits with other financial institutions |  |  | 90 days |  |
Maximum [Member] | Buildings And Related Components [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful life |  |  | 40 years |  |
Maximum [Member] | Furniture, fixtures and equipment [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful life |  |  | 25 years |  |
Single-Family Residential [Member] | Maximum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Lending amount up to the percentage of collateral | 80.00% |  | 80.00% |  |
Multi-Family Residential [Member] | Minimum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Fixed rates loans limit, period |  |  | 3 years |  |
Multi-Family Residential [Member] | Maximum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Lending amount up to the percentage of collateral | 85.00% |  | 85.00% |  |
Fixed rates loans limit, period |  |  | 5 years |  |
Real Estate Commercial [Member] | Minimum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Fixed rates loans limit, period |  |  | 3 years |  |
Real Estate Commercial [Member] | Maximum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Lending amount up to the percentage of collateral | 85.00% |  | 85.00% |  |
Fixed rates loans limit, period |  |  | 5 years |  |
Construction [Member] | Maximum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Lending amount up to the percentage of collateral | 80.00% |  | 80.00% |  |
Maturity of construction loans convert to permanent loans |  |  | 30 years |  |

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