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Note 4 - Loans - Average Balance and Interest Income Recognized Related to Impaired Loans (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Average Recorded Investment | $ 72,740 | $ 91,353
Interest Income Recognized | 1,074 | 2,394
Commercial Portfolio Segment [Member] |  |
Average Recorded Investment | 21,453 | 31,009
Interest Income Recognized | 0 | 246
Real Estate Construction Portfolio Segment [Member] |  |
Average Recorded Investment | 3,805 | 4,408
Interest Income Recognized | 0 | 294
Commercial Real Estate Portfolio Segment [Member] |  |
Average Recorded Investment | 38,047 | 41,649
Interest Income Recognized | 1,044 | 1,602
Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |
Average Recorded Investment | 9,435 | 14,287
Interest Income Recognized | $ 30 | $ 252

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- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5258-111524 + Details
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- Definition Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 + Details
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