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Loans Receivable and Allowance for Loan Losses (Loan Portfolio Summarized by the Past Due Status) (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | $ 860,086 | $ 846,250
Non-Accrual | 1,097 | 1,140
Total Past Due and Non-Accrual | 4,228 | 4,052
Total Loans | 864,314 | 850,302
Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 1,229 | 1,907
Financing Receivables, 61 to 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 1,902 | 1,005
Financing Receivables, Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Residential Real Estate Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 230,696 | 234,201
Non-Accrual | 596 | 798
Total Past Due and Non-Accrual | 1,258 | 1,322
Total Loans | 231,954 | 235,523
Residential Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 598 | 373
Residential Real Estate Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 64 | 151
Residential Real Estate Loans [Member] | Financing Receivables, Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Commercial Real Estate Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 370,808 | 372,617
Non-Accrual | 451 | 342
Total Past Due and Non-Accrual | 2,468 | 2,173
Total Loans | 373,276 | 374,790
Commercial Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 445 | 1,043
Commercial Real Estate Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 1,572 | 788
Commercial Real Estate Loans [Member] | Financing Receivables, Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Construction Real Estate Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 18,604 | 17,445
Non-Accrual | 0 | 0
Total Past Due and Non-Accrual | 0 | 0
Total Loans | 18,604 | 17,445
Construction Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Construction Real Estate Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Construction Real Estate Loans [Member] | Financing Receivables, Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Commercial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 118,242 | 110,191
Non-Accrual | 32 | 0
Total Past Due and Non-Accrual | 293 | 351
Total Loans | 118,535 | 110,542
Commercial [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 1 | 320
Commercial [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 260 | 31
Commercial [Member] | Financing Receivables, Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Consumer Loans To Individuals [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 121,736 | 111,796
Non-Accrual | 18 | 0
Total Past Due and Non-Accrual | 209 | 206
Total Loans | 121,945 | 112,002
Consumer Loans To Individuals [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 185 | 171
Consumer Loans To Individuals [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 6 | 35
Consumer Loans To Individuals [Member] | Financing Receivables, Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | $ 0 | $ 0

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