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Note 4 - Loans Receivable and Credit Disclosures - Activity in Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Balance, beginning | $ 17,215 | $ 12,619
Provision (credit) for loan losses | (757) | 5,681
Recoveries of loans charged-off | 339 | 325
Loans charged-off | (176) | (1,410)
Balance, ending | 16,621 | 17,215
Construction Real Estate [Member] |  |
Balance, beginning | 725 | 672
Provision (credit) for loan losses | (50) | 52
Recoveries of loans charged-off | 0 | 1
Loans charged-off | 0 | 0
Balance, ending | 675 | 725
Family Residential Real Estate 1-4 [Member] |  |
Balance, beginning | 2,581 | 2,122
Provision (credit) for loan losses | (63) | 471
Recoveries of loans charged-off | 268 | 6
Loans charged-off | (34) | (18)
Balance, ending | 2,752 | 2,581
Commercial Real Estate Portfolio Segment [Member] |  |
Balance, beginning | 8,930 | 5,362
Provision (credit) for loan losses | (528) | 3,986
Recoveries of loans charged-off | 4 | 26
Loans charged-off | 0 | (444)
Balance, ending | 8,406 | 8,930
Agriculture Real Estate [Member] |  |
Balance, beginning | 1,595 | 1,326
Provision (credit) for loan losses | (11) | 269
Recoveries of loans charged-off | 0 | 0
Loans charged-off | 0 | 0
Balance, ending | 1,584 | 1,595
Commercial Portfolio Segment [Member] |  |
Balance, beginning | 1,453 | 1,458
Provision (credit) for loan losses | (175) | 609
Recoveries of loans charged-off | 5 | 14
Loans charged-off | (113) | (628)
Balance, ending | 1,170 | 1,453
Agriculture [Member] |  |
Balance, beginning | 1,696 | 1,478
Provision (credit) for loan losses | 92 | 266
Recoveries of loans charged-off | 48 | 0
Loans charged-off | 0 | (48)
Balance, ending | 1,836 | 1,696
Consumer and Other [Member] |  |
Balance, beginning | 235 | 201
Provision (credit) for loan losses | (22) | 28
Recoveries of loans charged-off | 14 | 278
Loans charged-off | (29) | (272)
Balance, ending | $ 198 | $ 235

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- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=122038336&loc=d3e74567-122707 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition Amount of expense related to estimated loss from loan and lease transactions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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