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Loans Receivable and Allowance for Loan Losses (Summary of Amount of Loans in Each Category that were Individually and Collectively Evaluated for Impairment) (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Individually evaluated for impairment $ 1,319 $ 1,247
Loans acquired with deteriorated credit quality 886 1,174
Collectively evaluated for impairment 848,097 761,914
Total Loans 850,302 764,335
Residential Real Estate Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Individually evaluated for impairment   23
Loans acquired with deteriorated credit quality 630 833
Collectively evaluated for impairment 234,893 234,903
Total Loans 235,523 235,759
Commercial Real Estate Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Individually evaluated for impairment 1,319 1,224
Loans acquired with deteriorated credit quality 256 341
Collectively evaluated for impairment 373,215 341,369
Total Loans 374,790 342,934
Construction Real Estate Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Collectively evaluated for impairment 17,445 17,228
Total Loans 17,445 17,228
Commercial [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Collectively evaluated for impairment 110,542 97,461
Total Loans 110,542 97,461
Consumer Loans To Individuals [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Collectively evaluated for impairment 112,002 70,953
Total Loans $ 112,002 $ 70,953