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Note 3 - Loans and Allowance for Loan Losses - Loans Modified as Troubled Debt Restructurings (Details) | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Number of Contracts | 18 | 45
Pre- Modification Recorded Principal Balance | $ 4,333,000 | $ 22,498,000
Post- Modification Recorded Principal Balance | $ 4,329,000 | $ 23,298,000
Commercial Portfolio Segment [Member] |  |
Number of Contracts | 12 | 23
Pre- Modification Recorded Principal Balance | $ 3,802,000 | $ 21,896,000
Post- Modification Recorded Principal Balance | $ 3,801,000 | $ 22,698,000
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |
Number of Contracts | 10 | 13
Pre- Modification Recorded Principal Balance | $ 3,017,000 | $ 6,914,000
Post- Modification Recorded Principal Balance | $ 3,016,000 | $ 7,717,000
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |
Number of Contracts | 0 | 0
Pre- Modification Recorded Principal Balance | $ 0 | $ 0
Post- Modification Recorded Principal Balance | $ 0 | $ 0
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |
Number of Contracts | 1 | 8
Pre- Modification Recorded Principal Balance | $ 692,000 | $ 14,663,000
Post- Modification Recorded Principal Balance | $ 692,000 | $ 14,663,000
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |
Number of Contracts | 0 | 2
Pre- Modification Recorded Principal Balance | $ 0 | $ 319,000
Post- Modification Recorded Principal Balance | $ 0 | $ 318,000
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |
Number of Contracts | 1 | 0
Pre- Modification Recorded Principal Balance | $ 93,000 | $ 0
Post- Modification Recorded Principal Balance | $ 93,000 | $ 0
Retail Portfolio Segment [Member] |  |
Number of Contracts | 6 | 22
Pre- Modification Recorded Principal Balance | $ 531,000 | $ 602,000
Post- Modification Recorded Principal Balance | $ 528,000 | $ 600,000
Retail Portfolio Segment [Member] | Home Equity and Other [Member] |  |
Number of Contracts | 4 | 16
Pre- Modification Recorded Principal Balance | $ 485,000 | $ 451,000
Post- Modification Recorded Principal Balance | $ 482,000 | $ 452,000
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] |  |
Number of Contracts | 2 | 6
Pre- Modification Recorded Principal Balance | $ 46,000 | $ 151,000
Post- Modification Recorded Principal Balance | $ 46,000 | $ 148,000

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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524 + Details
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