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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

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