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Loans Receivable and Allowance for Loan Losses (Composition of the Loan Portfolio) (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018 | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | $ 864,314 | $ 850,302 |  |
Deferred fees, net | (116) | (120) |  |
Total loans receivable | 864,198 | 850,182 |  |
Allowance for loan losses | (8,349) | (8,452) | $ (8,099) | $ (7,634)
Net loans receivable | $ 855,849 | $ 841,730 |  |
Percent of Loans | 100.00% | 100.00% |  |
Residential Real Estate Loans [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | $ 231,954 | $ 235,523 |  |
Allowance for loan losses | $ (1,455) | $ (1,328) | (1,525) | (1,272)
Percent of Loans | 26.80% | 27.70% |  |
Commercial Real Estate Loans [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | $ 373,276 | $ 374,790 |  |
Allowance for loan losses | $ (4,947) | $ (5,455) | (5,129) | (5,265)
Percent of Loans | 43.20% | 44.10% |  |
Construction Real Estate Loans [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | $ 18,604 | $ 17,445 |  |
Allowance for loan losses | $ (108) | $ (93) | (120) | (90)
Percent of Loans | 2.20% | 2.00% |  |
Commercial [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | $ 118,535 | $ 110,542 |  |
Allowance for loan losses | $ (811) | $ (712) | (638) | (463)
Percent of Loans | 13.70% | 13.00% |  |
Consumer Loans To Individuals [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total Loans | $ 121,945 | $ 112,002 |  |
Allowance for loan losses | $ (1,028) | $ (864) | $ (687) | $ (544)
Percent of Loans | 14.10% | 13.20% |  |

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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=6876686&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=84165051&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=84173941&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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