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Schedule of Impaired Financing Receivables (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Unpaid contractual principal | $ 15,059,000 | $ 14,763,000
Impaired loan balance | 12,758,000 | 12,462,000
Impaired loans without an allowance | 7,119,000 | 8,473,000
Impaired loans with an allowance | 5,639,000 | 3,989,000
Related allowance recorded | 492,000 | 266,000
Year-to-date average loan balance | 12,864,000 | 12,948,000
Year-to-date interest income recognized | 43,000 | 148,000
One To Four Family Residential Real Estate Loans [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Unpaid contractual principal | 956,000 | 914,000
Impaired loan balance | 956,000 | 914,000
Impaired loans without an allowance | 956,000 | 914,000
Impaired loans with an allowance |  |
Related allowance recorded |  |
Year-to-date average loan balance | 963,000 | 925,000
Year-to-date interest income recognized | 2,000 | 3,000
Construction and Land Loans [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Unpaid contractual principal | 2,762,000 | 2,872,000
Impaired loan balance | 1,027,000 | 1,137,000
Impaired loans without an allowance | 1,027,000 | 1,137,000
Impaired loans with an allowance |  |
Related allowance recorded |  |
Year-to-date average loan balance | 1,043,000 | 1,211,000
Year-to-date interest income recognized | 6,000 | 26,000
Commercial Real Estate Loans [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Unpaid contractual principal | 7,874,000 | 8,119,000
Impaired loan balance | 7,874,000 | 8,119,000
Impaired loans without an allowance | 2,404,000 | 4,302,000
Impaired loans with an allowance | 5,470,000 | 3,817,000
Related allowance recorded | 424,000 | 177,000
Year-to-date average loan balance | 7,875,000 | 8,152,000
Year-to-date interest income recognized | 9,000 | 8,000
Commercial Loan [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Unpaid contractual principal | 2,030,000 | 1,990,000
Impaired loan balance | 1,679,000 | 1,639,000
Impaired loans without an allowance | 1,561,000 | 1,543,000
Impaired loans with an allowance | 118,000 | 96,000
Related allowance recorded | 28,000 | 22,000
Year-to-date average loan balance | 1,705,000 | 1,984,000
Year-to-date interest income recognized | 10,000 | 43,000
Agriculture Loans [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Unpaid contractual principal | 1,397,000 | 829,000
Impaired loan balance | 1,182,000 | 614,000
Impaired loans without an allowance | 1,131,000 | 538,000
Impaired loans with an allowance | 51,000 | 76,000
Related allowance recorded | 40,000 | 67,000
Year-to-date average loan balance | 1,237,000 | 618,000
Year-to-date interest income recognized | 16,000 | 67,000
Municipal Loans [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Unpaid contractual principal | 36,000 | 36,000
Impaired loan balance | 36,000 | 36,000
Impaired loans without an allowance | 36,000 | 36,000
Impaired loans with an allowance |  |
Related allowance recorded |  |
Year-to-date average loan balance | 36,000 | 54,000
Year-to-date interest income recognized |  | 1,000
Consumer Loan [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Unpaid contractual principal | 4,000 | 3,000
Impaired loan balance | 4,000 | 3,000
Impaired loans without an allowance | 4,000 | 3,000
Impaired loans with an allowance |  |
Related allowance recorded |  |
Year-to-date average loan balance | 5,000 | 4,000
Year-to-date interest income recognized |  |

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