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Note 4 - Loans Receivable (Details Textual) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2020 USD ($)
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums, Total | $ 5,673 |  | $ 5,303
Impaired Financing Receivable, Recorded Investment, Total | 12,200 |  | 11,800
Financial Asset Acquired with Credit Deterioration [Member] |  |  |
Impaired Financing Receivable, Unpaid Principal Balance, Total | 5,200 |  | 5,400
Impaired Financing Receivable, Recorded Investment, Total | 3,200 |  | 3,400
Residential Portfolio Segment [Member] |  |  |
Financing Receivable, Modifications, Number of Contracts |  | 1 |
Financing Receivable, Troubled Debt Restructuring |  | $ 53 |
Impaired Financing Receivable, Unpaid Principal Balance, Total | 3,235 |  | 3,542
Impaired Financing Receivable, Recorded Investment, Total | $ 1,902 |  | 2,165
Residential Portfolio Segment [Member] | Residential Mortgage [Member] |  |  |
Loans Receivable, Maximum Percentage of Purchase Price or Appraised Value | 97.00% |  |
Loans Receivable, Percentage of Value in Excess Requiring Private Mortgage Insurance | 80.00% |  |
Loans Receivable, Percentage of Equity, Excess Does Not Require Private Mortgage Insurance | 20.00% |  |
Residential Portfolio Segment [Member] | Fixed Rate Residential Mortgage [Member] |  |  |
Loans Receivable, Minimum Contractual Maturity to be Classified as Held for Sale (Year) | 15 years |  |
Residential Portfolio Segment [Member] | Real Estate Loan [Member] |  |  |
Financing Receivable, Modifications, Number of Contracts | 2 |  |
Financing Receivable, Troubled Debt Restructuring | $ 150 |  |
Financing Receivable, Troubled Debt Restructuring, Subsequent Default | $ 39 |  |
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | 1 |  |
Home Equity Portfolio Segment [Member] |  |  |
Loans Receivable, Maximum Percentage of Purchase Price or Appraised Value | 89.00% |  |
Loans Receivable, Maximum Percentage of Appraised Value of Improved Property | 85.00% |  |
Impaired Financing Receivable, Unpaid Principal Balance, Total | $ 364 |  | 372
Impaired Financing Receivable, Recorded Investment, Total | $ 352 |  | 353
Home Equity Portfolio Segment [Member] | Maximum [Member] |  |  |
Loans Receivable, Contractual Maturity (Month) | 240 months |  |
Commercial Real Estate Portfolio Segment [Member] |  |  |
Loans Receivable, Maximum Percentage of Purchase Price or Appraised Value | 80.00% |  |
Financing Receivable, Modifications, Number of Contracts |  | 1 |
Financing Receivable, Troubled Debt Restructuring |  | $ 149 |
Impaired Financing Receivable, Unpaid Principal Balance, Total | $ 7,686 |  | 6,925
Impaired Financing Receivable, Recorded Investment, Total | $ 7,103 |  | 6,341
Commercial Real Estate Portfolio Segment [Member] | Maximum [Member] |  |  |
Loans Receivable, Contractual Maturity (Month) | 20 years |  |
Loans Receivable, Balloon Feature, Period for Full Repayment (Year) | 10 years |  |
Commercial Real Estate Portfolio Segment [Member] | Minimum [Member] |  |  |
Loans Receivable, Contractual Maturity (Month) | 15 years |  |
Loans Receivable, Balloon Feature, Period for Full Repayment (Year) | 7 years |  |
Construction and Land Development Portfolio Segment [Member] |  |  |
Impaired Financing Receivable, Unpaid Principal Balance, Total | $ 0 |  | 0
Impaired Financing Receivable, Recorded Investment, Total | $ 0 |  | 0
Construction and Land Development Portfolio Segment [Member] | Residential Mortgage [Member] |  |  |
Loans Receivable, Maximum Percentage of Purchase Price or Appraised Value | 89.00% |  |
Construction and Land Development Portfolio Segment [Member] | Residential Mortgage [Member] | Maximum [Member] |  |  |
Loans Receivable, Contractual Maturity (Month) | 1 year |  |
Construction and Land Development Portfolio Segment [Member] | Residential Mortgage [Member] | Minimum [Member] |  |  |
Loans Receivable, Contractual Maturity (Month) | 6 months |  |
Construction and Land Development Portfolio Segment [Member] | Commercial Real Estate [Member] |  |  |
Loans Receivable, Maximum Percentage of Purchase Price or Appraised Value | 80.00% |  |
Construction and Land Development Portfolio Segment [Member] | Commercial Real Estate [Member] | Maximum [Member] |  |  |
Loans Receivable, Contractual Maturity (Month) | 2 years |  |
Manufactured Homes Portfolio Segment [Member] |  |  |
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums, Total | $ 4,100 |  | 3,800
Impaired Financing Receivable, Unpaid Principal Balance, Total | 0 |  | 0
Impaired Financing Receivable, Recorded Investment, Total | $ 0 |  | 0
Manufactured Homes Portfolio Segment [Member] | Maximum [Member] |  |  |
Loans Receivable, Contractual Maturity (Month) | 25 years |  |
Commercial Portfolio Segment [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring, Subsequent Default |  | $ 312 |
Impaired Financing Receivable, Unpaid Principal Balance, Total | $ 2,161 |  | 2,263
Impaired Financing Receivable, Recorded Investment, Total | $ 2,162 |  | $ 2,246
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts |  | 1 |

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