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Loans Receivable Held for Investment, Loans Individually Evaluated for Impairment by Loan Type (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
With an Allowance Recorded [Abstract] |  |
Allowance for loan losses allocated | $ 141 | $ 147
Total [Abstract] |  |
Unpaid principal balance | 5,289 | 6,388
Recorded investment | 4,731 | 5,343
Real Estate [Member] | Single Family [Member] |  |
With No Related Allowance Recorded [Abstract] |  |
Unpaid principal balance | 2 | 0
Recorded investment | 1 | 0
With an Allowance Recorded [Abstract] |  |
Unpaid principal balance | 573 | 593
Recorded investment | 573 | 593
Allowance for loan losses allocated | 88 | 60
Real Estate [Member] | Multi-Family [Member] |  |
With No Related Allowance Recorded [Abstract] |  |
Unpaid principal balance | 298 | 313
Recorded investment | 298 | 313
With an Allowance Recorded [Abstract] |  |
Unpaid principal balance | 0 | 0
Recorded investment | 0 | 0
Allowance for loan losses allocated | 0 | 0
Real Estate [Member] | Church [Member] |  |
With No Related Allowance Recorded [Abstract] |  |
Unpaid principal balance | 2,527 | 3,491
Recorded investment | 1,970 | 2,446
With an Allowance Recorded [Abstract] |  |
Unpaid principal balance | 1,842 | 1,928
Recorded investment | 1,842 | 1,928
Allowance for loan losses allocated | 52 | 85
Commercial - Other [Member] |  |
With an Allowance Recorded [Abstract] |  |
Unpaid principal balance | 47 | 63
Recorded investment | 47 | 63
Allowance for loan losses allocated | $ 1 | $ 2

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