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FHLB Advances And Other Debt (Narrative) (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2018
Mar. 31, 2018
Sep. 30, 2018
Jul. 31, 2018
Line of Credit Facility [Line Items]        
Line of credit, borrowing capacity       $ 8,000,000
Line of credit, increase in borrowing capacity       $ 2,000,000
Third-Party Bank [Member]        
Line of Credit Facility [Line Items]        
Line of credit, borrowing capacity $ 6,000,000   $ 6,000,000  
Line of credit outstanding 8,000,000 $ 6,000,000 $ 8,000,000  
Line of credit, increase 2,000,000      
Capital contribution to subsidiary $ 1,500,000 $ 5,000,000    
Variable rate spread     0.75%