Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details)

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Commitments and Contingencies (Details) - USD ($)
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Commitments and Contingencies [Line Items]    
Loans and Leases Receivable, Commitments, Fixed Rates $ 85,097 $ 58,249
Loans and Leases Receivable, Commitments, Variable Rates 106,576 79,190
Loans And Leases Receivable Commitments 191,673,000 137,439,000
Government [Member]    
Commitments and Contingencies [Line Items]    
Loans and Leases Receivable, Commitments, Fixed Rates 0 0
Loans and Leases Receivable, Commitments, Variable Rates 0 0
Loans And Leases Receivable Commitments 0 0
Residential Real Estate [Member]    
Commitments and Contingencies [Line Items]    
Loans and Leases Receivable, Commitments, Fixed Rates 106 70
Loans and Leases Receivable, Commitments, Variable Rates 10,812 7,678
Loans And Leases Receivable Commitments 10,918,000 7,748,000
Home Equity Loan [Member]    
Commitments and Contingencies [Line Items]    
Loans and Leases Receivable, Commitments, Fixed Rates 35,571 31,008
Loans and Leases Receivable, Commitments, Variable Rates 5,960 1,838
Loans And Leases Receivable Commitments 41,531,000 32,846,000
Commercial Real Estate [Member]    
Commitments and Contingencies [Line Items]    
Loans and Leases Receivable, Commitments, Fixed Rates 6,397 1,351
Loans and Leases Receivable, Commitments, Variable Rates 9,258 6,866
Loans And Leases Receivable Commitments 15,655,000 8,217,000
Construction and Land Development [Member]    
Commitments and Contingencies [Line Items]    
Loans and Leases Receivable, Commitments, Fixed Rates 18,355 8,074
Loans and Leases Receivable, Commitments, Variable Rates 35,222 21,105
Loans And Leases Receivable Commitments 53,577,000 29,179,000
Multifamily [Member]    
Commitments and Contingencies [Line Items]    
Loans and Leases Receivable, Commitments, Fixed Rates 4,151 174
Loans and Leases Receivable, Commitments, Variable Rates 389 322
Loans And Leases Receivable Commitments 4,540,000 496,000
Consumer [Member]    
Commitments and Contingencies [Line Items]    
Loans and Leases Receivable, Commitments, Fixed Rates 18,862 16,469
Loans and Leases Receivable, Commitments, Variable Rates 0 0
Loans And Leases Receivable Commitments 18,862,000 16,469,000
Commercial Business [Member]    
Commitments and Contingencies [Line Items]    
Loans and Leases Receivable, Commitments, Fixed Rates 1,655 1,103
Loans and Leases Receivable, Commitments, Variable Rates 44,935 41,381
Loans And Leases Receivable Commitments $ 46,590,000 $ 42,484,000