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FHLB Advances And Other Debt (Narrative) (Details) - Third-Party Bank [Member]
3 Months Ended
Mar. 31, 2018
USD ($)
Line of Credit Facility [Line Items]  
Line of credit, borrowing capacity $ 6,000,000
Line of credit outstanding 6,000,000
Capital contribution to subsidiary $ 5,000,000
Variable rate spread 0.75%