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Note 4 - Loans Receivable - Loans Receivable (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | --- | --- | ---
Loans receivable | $ 1,089,496 |  | $ 1,174,728 |  |  |
Net deferred loan origination costs | (458) |  | (912) |  |  |
Allowance for loan losses | (8,156) | $ (8,112) | (7,632) | $ (7,824) | $ (8,354) | $ (8,470)
Loans, net | 1,081,798 |  | 1,168,008 |  |  |
Commercial Portfolio Segment [Member] |  |  |  |  |  |
Loans receivable | 126,609 |  | 145,714 |  |  |
Allowance for loan losses | (856) |  | (1,308) |  |  |
Finance Leases Portfolio Segment [Member] |  |  |  |  |  |
Loans receivable | 247,997 |  | 272,629 |  |  |
Allowance for loan losses | (802) |  | (757) |  |  |
Consumer Portfolio Segment [Member] |  |  |  |  |  |
Loans receivable | 1,783 |  | 2,211 |  |  |
Allowance for loan losses | (46) |  | (40) |  |  |
One-to-Four Family Residential Real Estate [Member] | Real Estate Portfolio [Member] |  |  |  |  |  |
Loans receivable | 48,928 |  | 55,750 |  |  |
Allowance for loan losses | (665) |  | (675) |  |  |
Multi-family Mortgage [Member] | Real Estate Portfolio [Member] |  |  |  |  |  |
Loans receivable | 536,619 |  | 563,750 |  |  |
Allowance for loan losses | (4,185) |  | (3,676) |  |  |
Nonresidential Real Estate [Member] |  |  |  |  |  |
Allowance for loan losses | (1,602) | $ (1,460) | (1,176) | $ (1,195) | $ (1,487) | $ (1,476)
Nonresidential Real Estate [Member] | Real Estate Portfolio [Member] |  |  |  |  |  |
Loans receivable | 127,560 |  | 134,674 |  |  |
Allowance for loan losses | $ (1,602) |  | $ (1,176) |  |  |

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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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- Definition Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale. + 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 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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- Definition Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts 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 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6378536&loc=d3e10092-111533 + Details
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