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Note 4 - Allowance for Loan Losses - Allowance by Impairment Methodology and Loans by Impairment Methodology (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Beginning balance | $ 4,934 | $ 5,009 | $ 5,009
Charge-offs | (328) | (228) | (884)
Recoveries | 78 | 165 | 359
Provision for (recovery of) loan losses | 900 |  | 450
Ending balance | 5,584 | 4,946 | 4,934
Individually evaluated for impairment, allowance | 11 | 129 | 33
Collectively evaluated for impairment, allowance | 5,573 | 4,817 | 4,901
Loans | 581,867 |  | 574,346
Individually evaluated for impairment, loans | 1,522 | 2,175 | 1,459
Collectively evaluated for impairment, loans | 580,345 | 548,300 | 572,887
Real Estate 1 [Member] | Construction and Land Development [Member] |  |  |
Beginning balance | 464 | 561 | 561
Charge-offs |  |  | (2)
Recoveries |  | 50 | 50
Provision for (recovery of) loan losses | (3) | (6) | (145)
Ending balance | 461 | 605 | 464
Individually evaluated for impairment, allowance |  | 71 | 22
Collectively evaluated for impairment, allowance | 461 | 534 | 442
Loans | 40,279 |  | 43,164
Individually evaluated for impairment, loans | 400 | 398 | 367
Collectively evaluated for impairment, loans | 39,879 | 48,550 | 42,797
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member] |  |  |
Beginning balance | 776 | 895 | 895
Charge-offs |  | (49) | (58)
Recoveries | 2 | 2 | 9
Provision for (recovery of) loan losses | 298 | (82) | (70)
Ending balance | 1,076 | 766 | 776
Individually evaluated for impairment, allowance | 11 | 23 | 11
Collectively evaluated for impairment, allowance | 1,065 | 743 | 765
Loans | 230,980 |  | 229,438
Individually evaluated for impairment, loans | 667 | 990 | 630
Collectively evaluated for impairment, loans | 230,313 | 216,537 | 228,808
Real Estate 1 [Member] | Other Real Estate Loans [Member] |  |  |
Beginning balance | 2,296 | 2,160 | 2,160
Charge-offs |  |  | (27)
Recoveries | 1 |  | 1
Provision for (recovery of) loan losses | 347 | 115 | 162
Ending balance | 2,644 | 2,275 | 2,296
Individually evaluated for impairment, allowance |  | 35 |
Collectively evaluated for impairment, allowance | 2,644 | 2,240 | 2,296
Loans | 241,374 |  | 236,555
Individually evaluated for impairment, loans | 455 | 787 | 462
Collectively evaluated for impairment, loans | 240,919 | 220,609 | 236,093
Commercial and Industrial Loans [Member] |  |  |
Beginning balance | 562 | 464 | 464
Charge-offs | (68) |  | (2)
Recoveries | 2 | 2 | 8
Provision for (recovery of) loan losses | 215 | 26 | 92
Ending balance | 711 | 492 | 562
Individually evaluated for impairment, allowance |  |  |
Collectively evaluated for impairment, allowance | 711 | 492 | 562
Loans | 55,508 |  | 50,153
Individually evaluated for impairment, loans |  |  |
Collectively evaluated for impairment, loans | 55,508 | 46,045 | 50,153
Consumer and Other Loans [Member] |  |  |
Beginning balance | 836 | 929 | 929
Charge-offs | (260) | (179) | (795)
Recoveries | 73 | 111 | 291
Provision for (recovery of) loan losses | 43 | (53) | 411
Ending balance | 692 | 808 | 836
Individually evaluated for impairment, allowance |  |  |
Collectively evaluated for impairment, allowance | 692 | 808 | 836
Loans | 13,726 |  | 15,036
Individually evaluated for impairment, loans |  |  |
Collectively evaluated for impairment, loans | $ 13,726 | $ 16,559 | $ 15,036

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- Definition Represents the amount of provision (reduction in reserve) for loan losses during the period. + References No definition available. + Details
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- Definition Amount of direct write-downs of accounts receivable charged against the allowance. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
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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=121611835&loc=SL6953423-111524 + Details
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + 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 (g) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + 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 (g) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were collectively evaluated for impairment. + 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 (h) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were individually evaluated for impairment. + 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 (h) -URI http://asc.fasb.org/extlink&oid=121611835&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://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=121611835&loc=SL6953423-111524 Reference 2: 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 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)(1) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -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=27010918&loc=d3e74567-122707 + Details
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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 + Details
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