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Note 4 - Loans Receivable - Activity in the Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Beginning balance | $ 6,857 | $ 8,156 | $ 7,751 | $ 7,632
(Recovery of) provision for loan losses | (6) | (187) | (1,019) | 326
Loans charged off | (2) | (16) | (103) | (51)
Recoveries | 46 | 58 | 266 | 104
Total ending allowance balance | 6,895 | 8,011 | 6,895 | 8,011
Commercial Portfolio Segment [Member] |  |  |  |
Beginning balance | 1,377 | 1,658 | 1,536 | 2,065
(Recovery of) provision for loan losses | 176 | (178) | 15 | (588)
Loans charged off | 0 | 0 | (86) | 0
Recoveries | 1 | 0 | 89 | 3
Total ending allowance balance | 1,554 | 1,480 | 1,554 | 1,480
Consumer Portfolio Segment [Member] |  |  |  |
Beginning balance | 47 | 46 | 54 | 40
(Recovery of) provision for loan losses | (2) | 16 | 4 | 52
Loans charged off | (2) | (14) | (17) | (44)
Recoveries | 0 | 0 | 2 | 0
Total ending allowance balance | 43 | 48 | 43 | 48
One-to-Four Family Residential Real Estate [Member] | Real Estate Portfolio [Member] |  |  |  |
Beginning balance | 396 | 665 | 518 | 675
(Recovery of) provision for loan losses | (33) | (42) | (264) | (63)
Loans charged off | 0 | (2) | 0 | (7)
Recoveries | 38 | 2 | 147 | 18
Total ending allowance balance | 401 | 623 | 401 | 623
Multi-family Mortgage [Member] | Real Estate Portfolio [Member] |  |  |  |
Beginning balance | 3,690 | 4,185 | 4,062 | 3,676
(Recovery of) provision for loan losses | (118) | (98) | (511) | 384
Loans charged off | 0 | 0 | 0 | 0
Recoveries | 7 | 56 | 28 | 83
Total ending allowance balance | 3,579 | 4,143 | 3,579 | 4,143
Nonresidential Real Estate [Member] | Real Estate Portfolio [Member] |  |  |  |
Beginning balance | 1,336 | 1,602 | 1,569 | 1,176
(Recovery of) provision for loan losses | (30) | 115 | (263) | 541
Loans charged off | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Total ending allowance balance | 1,306 | $ 1,717 | 1,306 | $ 1,717
Construction and Land Loans [Member] |  |  |  |
Beginning balance | 11 |  | 12 |
(Recovery of) provision for loan losses | 1 |  | 0 |
Loans charged off | 0 |  | 0 |
Recoveries | 0 |  | 0 |
Total ending allowance balance | $ 12 |  | $ 12 |

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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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