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FHLB Advances And Other Debt (Narrative) (Details) - USD ($)
1 Months Ended 3 Months Ended
Dec. 31, 2019
Dec. 31, 2019
Mar. 31, 2020
Sep. 30, 2019
Dec. 31, 2018
Line of credit outstanding $ 0 $ 0      
Third-Party Bank [Member]          
Line of credit, borrowing capacity         $ 10,000,000
Variable rate spread 0.75%        
Third-Party Bank [Member] | Term Loan [Member]          
Loan $ 5,000,000 5,000,000 $ 4,875,000    
Line Of Credit [Member] | Third-Party Bank [Member]          
Line of credit, borrowing capacity 10,000,000 10,000,000      
Line of credit outstanding     5,000,000    
Outstanding borrowings 5,000,000 5,000,000      
Line Of Credit [Member] | Third-Party Bank [Member] | Term Loan [Member]          
Principal payments $ 125,000        
Line of credit, expiration date Dec. 23, 2022        
Line Of Credit [Member] | Commercial Bank [Member]          
Line of credit, borrowing capacity     8,000,000    
Line of credit outstanding $ 0 0 0    
Line Of Credit [Member] | Commercial Bank Two [Member]          
Line of credit, borrowing capacity       $ 15,000,000  
Line of credit outstanding 0 0 5,000,000    
FRB Primary Credit Line [Member]          
Outstanding borrowings     15,000,000    
Warehouse Facility [Member] | Commercial Bank [Member]          
Line of credit, borrowing capacity 25,000,000 25,000,000      
Line of credit outstanding $ 7,517,000 $ 7,517,000 $ 20,719,000    
Minimum [Member] | Warehouse Facility [Member] | Commercial Bank [Member] | London Interbank Offered Rate [Member]          
Variable rate spread   2.00%      
Maximum [Member] | Warehouse Facility [Member] | Commercial Bank [Member] | London Interbank Offered Rate [Member]          
Variable rate spread   4.00%