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Loan Commitments and Other Related Activities (Narrative) (Details) | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014
Contractual Commitments Contingencies And Off Balance Sheet Arrangements [Line Items] |  |
Period for commitments and construction loan commitments | 60 days |
Construction [Member] |  |
Contractual Commitments Contingencies And Off Balance Sheet Arrangements [Line Items] |  |
Period for commitments and construction loan commitments | 1 year |
Minimum [Member] |  |
Contractual Commitments Contingencies And Off Balance Sheet Arrangements [Line Items] |  |
Interest rates for fixed rate loan commitments | 4.25% | 3.25%
Maturities for fixed rate loan commitments | 3 months | 18 months
Maximum [Member] |  |
Contractual Commitments Contingencies And Off Balance Sheet Arrangements [Line Items] |  |
Interest rates for fixed rate loan commitments | 6.50% | 5.00%
Maturities for fixed rate loan commitments | 14 years | 30 years

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