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Note 15 - Commitments (Details Textual) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Number of Branch Locations by Utilized Leases | 7 |
Number of Production Offices by Utilized Leases | 1 |
Lease, Right-of-Use Asset, Net | $ 5,500,000 |
Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total | 4,737,000 | $ 4,012,000
Operating Lease, Right-of-Use Asset | 742,000 | 903,000
Finance Lease, Liability, Total | 4,839,000 |
Premises and Equipment, Net [Member] |  |
Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total | 4,700,000 |
Accrued Interest Receivable and Other Assets [Member] |  |
Operating Lease, Right-of-Use Asset | 742,000 |
Other Borrowings [Member] |  |
Finance Lease, Liability, Total | 4,800,000 |
Accrued Interest Payable and Other Liabilities [Member] |  |
Operating Lease, Liability, Total | $ 746,000 | $ 906,000
Minimum [Member] |  |
Lessee, Operating Lease, Remaining Term (Year) | 1 year |
Maximum [Member] |  |
Lessee, Operating Lease, Remaining Term (Year) | 20 years |

X
- Definition Amount of lessee's right to use underlying asset under operating and finance lease. + References No definition available. + Details
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X
- Definition Remaining term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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X
- Definition Represents number of branch locations by utilized locations. + References No definition available. + Details
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- Definition Represents number of production offices by utilized leases. + References No definition available. + Details
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X
- Definition Present value of lessee's discounted obligation for lease payments from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
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X
- Definition Amount, after accumulated amortization, of right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
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X
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
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X
- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
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