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Note 3 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans - Nonperforming Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020 | Mar. 31, 2020
--- | --- | --- | ---
Nonaccrual loans |  | $ 784 |  | $ 846 |  | $ 261
Restructured loans in nonaccrual |  | 2,907 |  | 2,839 |  | 3,191
Total nonperforming loans |  | 3,691 | [1],[2] | 3,685 | [2],[3] | 3,452
Other real estate owned, net |  | 957 |  | 1,553 |  | 1,584
Total nonperforming assets |  | $ 4,648 |  | $ 5,238 |  | $ 5,036
Ratio of nonperforming assets to loans, net of unearned income and deferred fees and costs, plus other real estate owned |  | 0.60% |  | 0.68% |  | 0.69%
Ratio of allowance for loan losses to nonperforming loans(1) | [4] | 231.27% |  | 230.15% |  | 209.73%
[1] | Includes current and past due loans in nonaccrual status. Includes impaired loans in nonaccrual status.
[2] | Only classes with past due or nonaccrual loans are shown.
[3] | Includes current and past due loans in nonaccrual status. Includes impaired loans in nonaccrual status.
[4] | The Company defines nonperforming loans as nonaccrual loans and restructured loans that are nonaccrual. Loans 90 days past due and still accruing and accruing restructured loans are excluded.

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- Definition Reflects the percentage derived from dividing the nonperforming assets by total loans net of unearned income deferred fees plus other real estate owned. + References No definition available. + Details
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- Definition Recorded investment in non-restructured loans that are on nonaccrual status as of the balance sheet date. + References No definition available. + Details
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- Definition Refers to restructured loans in nonaccrual. + References No definition available. + Details
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- Definition Represents financing receivables that are in nonaccrual status and other real estate owned. + References No definition available. + Details
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- Definition Refers to ratio of allowance for loan losses to nonperforming loans. + References No definition available. + Details
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- Definition Amount of financing receivable on nonaccrual status. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447 + Details
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- Definition Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5162-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4437-111522 + Details
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