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Note 8 - Loans - Loans Receivable (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Loans receivable | $ 1,182,222 | $ 827,563 |
Allowance for loan losses | (9,836) | (9,309) | $ (8,856)
Loans, net | 1,172,386 | 818,254 |
Residential Portfolio Segment [Member] |  |  |
Loans receivable | 586,580 | 456,806 |
Allowance for loan losses | (4,182) | (3,986) | (3,963)
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member] |  |  |
Loans receivable | 510,641 | 372,339 |
Allowance for loan losses | (3,405) | (3,156) | (3,200)
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member] |  |  |
Loans receivable | 27,503 | 25,450 |
Allowance for loan losses | (384) | (325) | (224)
Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member] |  |  |
Loans receivable | 33,638 | 34,319 |
Allowance for loan losses | (276) | (302) | (296)
Residential Portfolio Segment [Member] | Construction Loans [Member] |  |  |
Loans receivable | 14,798 | 24,698 |
Allowance for loan losses | (117) | (203) | (243)
Commercial Portfolio Segment [Member] |  |  |
Loans receivable | 578,901 | 353,627 |
Allowance for loan losses | (4,788) | (4,591) | (4,235)
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] |  |  |
Loans receivable | 301,227 | 162,611 |
Allowance for loan losses | (1,921) | (2,538) | (2,584)
Commercial Portfolio Segment [Member] | Construction Loans [Member] |  |  |
Loans receivable | 33,555 | 11,962 |
Allowance for loan losses | (966) | (110) | (150)
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |
Loans receivable | 126,374 | 91,856 |
Allowance for loan losses | (1,391) | (1,553) | (1,065)
Commercial Portfolio Segment [Member] | Political Subdivisions [Member] |  |  |
Loans receivable | 53,570 | 53,263 |
Allowance for loan losses | 0 | 0 |
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member] |  |  |
Loans receivable | 12,251 | 7,146 |
Allowance for loan losses | (158) | (102) | (105)
Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member] |  |  |
Loans receivable | 31,070 | 7,180 |
Allowance for loan losses | (156) | (114) | (172)
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] |  |  |
Loans receivable | 4,319 | 5,659 |
Allowance for loan losses | (41) | (46) | (57)
Commercial Portfolio Segment [Member] | Other Commercial Loans [Member] |  |  |
Loans receivable | 16,535 | 13,950 |
Allowance for loan losses | (155) | (128) | (102)
Consumer Portfolio Segment [Member] |  |  |
Loans receivable | 16,741 | 17,130 |
Allowance for loan losses | $ (281) | $ (233) | $ (159)

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