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Note 7 - Loans - Loans Receivable (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | ---
Loans receivable | $ 1,167,473 | $ 1,182,222 |  |
Allowance for loan losses | (11,330) | (9,836) | $ (8,256) | $ (9,309)
Loans, net | 1,156,143 | 1,172,386 |  |
Residential Portfolio Segment [Member] |  |  |  |
Loans receivable | 581,626 | 586,580 |  |
Allowance for loan losses | (4,383) | (4,182) | (3,991) | (3,986)
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member] |  |  |  |
Loans receivable | 508,387 | 510,641 |  |
Allowance for loan losses | (3,572) | (3,405) | (3,178) | (3,156)
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member] |  |  |  |
Loans receivable | 27,028 | 27,503 |  |
Allowance for loan losses | (414) | (384) | (329) | (325)
Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member] |  |  |  |
Loans receivable | 32,090 | 33,638 |  |
Allowance for loan losses | (278) | (276) | (286) | (302)
Residential Portfolio Segment [Member] | Construction Loans [Member] |  |  |  |
Loans receivable | 14,121 | 14,798 |  |
Allowance for loan losses | (119) | (117) | (198) | (203)
Commercial Portfolio Segment [Member] |  |  |  |
Loans receivable | 569,331 | 578,901 |  |
Allowance for loan losses | (6,089) | (4,788) | (3,444) | (4,591)
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] |  |  |  |
Loans receivable | 295,860 | 301,227 |  |
Allowance for loan losses | (1,932) | (1,921) | (1,887) | (2,538)
Commercial Portfolio Segment [Member] | Construction Loans [Member] |  |  |  |
Loans receivable | 33,340 | 33,555 |  |
Allowance for loan losses | (970) | (966) | (114) | (110)
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |  |
Loans receivable | 132,308 | 126,374 |  |
Allowance for loan losses | (2,645) | (1,391) | (1,069) | (1,553)
Commercial Portfolio Segment [Member] | Political Subdivisions [Member] |  |  |  |
Loans receivable | 43,613 | 53,570 |  |
Allowance for loan losses | 0 | 0 |  |
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member] |  |  |  |
Loans receivable | 11,524 | 12,251 |  |
Allowance for loan losses | (144) | (158) | (98) | (102)
Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member] |  |  |  |
Loans receivable | 32,370 | 31,070 |  |
Allowance for loan losses | (199) | (156) | (112) | (114)
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] |  |  |  |
Loans receivable | 3,886 | 4,319 |  |
Allowance for loan losses | (39) | (41) | (43) | (46)
Commercial Portfolio Segment [Member] | Other Commercial Loans [Member] |  |  |  |
Loans receivable | 16,430 | 16,535 |  |
Allowance for loan losses | (160) | (155) | (121) | (128)
Consumer Portfolio Segment [Member] |  |  |  |
Loans receivable | 16,516 | 16,741 |  |
Allowance for loan losses | $ (273) | $ (281) | $ (236) | $ (233)

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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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