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Note 4 - Loans Receivable - Allowance for Loan Losses and Loans Receivable (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | --- | --- | ---
Allowance for loan losses, individually evaluated for impairment | $ 0 |  | $ 0 |  |  |
Allowance for loan losses, collectively evaluated for impairment | 8,156 |  | 7,632 |  |  |
Allowance for loan losses | 8,156 | $ 8,112 | 7,632 | $ 7,824 | $ 8,354 | $ 8,470
Loan balances, individually evaluated for impairment | 3,493 |  | 2,743 |  |  |
Loan balances, collectively evaluated for impairment | 1,086,003 |  | 1,171,985 |  |  |
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 receivable, net of allowance for loan losses: June 30, 2020, $8,156 and December 31, 2019, $7,632 | 1,081,798 |  | 1,168,008 |  |  |
Nonresidential Real Estate [Member] |  |  |  |  |  |
Allowance for loan losses, individually evaluated for impairment |  |  | 0 |  |  |
Allowance for loan losses | 1,602 | 1,460 | 1,176 | 1,195 | 1,487 | 1,476
Allowance for loan losses | (1,602) | $ (1,460) | (1,176) | $ (1,195) | $ (1,487) | $ (1,476)
Real Estate Portfolio [Member] | One-to-Four Family Residential Real Estate [Member] |  |  |  |  |  |
Allowance for loan losses, individually evaluated for impairment | 0 |  | 0 |  |  |
Allowance for loan losses, collectively evaluated for impairment | 665 |  | 675 |  |  |
Allowance for loan losses | 665 |  | 675 |  |  |
Loan balances, individually evaluated for impairment | 1,768 |  | 1,835 |  |  |
Loan balances, collectively evaluated for impairment | 47,160 |  | 53,915 |  |  |
Loans receivable | 48,928 |  | 55,750 |  |  |
Allowance for loan losses | (665) |  | (675) |  |  |
Real Estate Portfolio [Member] | Multi-family Mortgage [Member] |  |  |  |  |  |
Allowance for loan losses, individually evaluated for impairment | 0 |  | 0 |  |  |
Allowance for loan losses, collectively evaluated for impairment | 4,185 |  | 3,676 |  |  |
Allowance for loan losses | 4,185 |  | 3,676 |  |  |
Loan balances, individually evaluated for impairment | 604 |  | 620 |  |  |
Loan balances, collectively evaluated for impairment | 536,015 |  | 563,130 |  |  |
Loans receivable | 536,619 |  | 563,750 |  |  |
Allowance for loan losses | (4,185) |  | (3,676) |  |  |
Real Estate Portfolio [Member] | Nonresidential Real Estate [Member] |  |  |  |  |  |
Allowance for loan losses, individually evaluated for impairment | 0 |  | 0 |  |  |
Allowance for loan losses, collectively evaluated for impairment | 1,602 |  | 1,176 |  |  |
Allowance for loan losses | 1,602 |  | 1,176 |  |  |
Loan balances, individually evaluated for impairment | 288 |  | 288 |  |  |
Loan balances, collectively evaluated for impairment | 127,272 |  | 134,386 |  |  |
Loans receivable | 127,560 |  | 134,674 |  |  |
Allowance for loan losses | (1,602) |  | (1,176) |  |  |
Commercial Portfolio Segment [Member] |  |  |  |  |  |
Allowance for loan losses, individually evaluated for impairment | 0 |  | 0 |  |  |
Allowance for loan losses, collectively evaluated for impairment | 856 |  | 1,308 |  |  |
Allowance for loan losses | 856 |  | 1,308 |  |  |
Loan balances, individually evaluated for impairment | 0 |  | 0 |  |  |
Loan balances, collectively evaluated for impairment | 126,609 |  | 145,714 |  |  |
Loans receivable | 126,609 |  | 145,714 |  |  |
Allowance for loan losses | (856) |  | (1,308) |  |  |
Finance Leases Portfolio Segment [Member] |  |  |  |  |  |
Allowance for loan losses, individually evaluated for impairment | 0 |  | 0 |  |  |
Allowance for loan losses, collectively evaluated for impairment | 802 |  | 757 |  |  |
Allowance for loan losses | 802 |  | 757 |  |  |
Loan balances, individually evaluated for impairment | 833 |  | 0 |  |  |
Loan balances, collectively evaluated for impairment | 247,164 |  | 272,629 |  |  |
Loans receivable | 247,997 |  | 272,629 |  |  |
Allowance for loan losses | (802) |  | (757) |  |  |
Consumer Portfolio Segment [Member] |  |  |  |  |  |
Allowance for loan losses, individually evaluated for impairment | 0 |  | 0 |  |  |
Allowance for loan losses, collectively evaluated for impairment | 46 |  | 40 |  |  |
Allowance for loan losses | 46 |  | 40 |  |  |
Loan balances, individually evaluated for impairment | 0 |  | 0 |  |  |
Loan balances, collectively evaluated for impairment | 1,783 |  | 2,211 |  |  |
Loans receivable | 1,783 |  | 2,211 |  |  |
Allowance for loan losses | $ (46) |  | $ (40) |  |  |

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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 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 of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. 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 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=121568338&loc=d3e45377-112738 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5074-111524 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84159169&loc=d3e10152-111534 + 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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