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Loan Commitments and Other Related Activities (FY) (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 USD ($) Loan | Dec. 31, 2018 USD ($)
Commitments to Make Loans [Member] |  |
Contractual Amounts of Financial Instruments Off-Balance-Sheet Risk [Abstract] |  |
Contractual amounts of financial instruments off-balance-sheet risk | $ 5,930 | $ 10,875
Commitments to Make Loans [Member] | Maximum [Member] |  |
Commitments Loans [Abstract] |  |
Loan commitment period | 60 days |
Commitments to Make Loans [Member] | Real Estate [Member] | Multi-family Loans [Member] |  |
Commitments Loans [Abstract] |  |
Number of loan commitments | Loan | 2 |
Loan period of initial interest rate term | 5 years |
Commitments to Make Loans [Member] | Real Estate [Member] | Multi-family Loans [Member] | Minimum [Member] |  |
Commitments Loans [Abstract] |  |
Initial interest rate | 3.50% |
Commitments to Make Loans [Member] | Real Estate [Member] | Multi-family Loans [Member] | Maximum [Member] |  |
Commitments Loans [Abstract] |  |
Initial interest rate | 3.75% |
Unused Lines of Credit [Member] |  |
Contractual Amounts of Financial Instruments Off-Balance-Sheet Risk [Abstract] |  |
Contractual amounts of financial instruments off-balance-sheet risk | $ 1,970 | $ 1,491

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- Definition The period for which the entity makes commitments to make loans, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The initial period for which the specified interest rate is applicable under commitments to make loans, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The fair value of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 + Details
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