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Subsequent Event (Narrative) (Details) - Subsequent Event [Member] - Subordinated Debt [Member]
$ in Millions
Jul. 30, 2018
USD ($)
Subsequent Event [Line Items]  
Face amount $ 33.5
First Five Years [Member]  
Subsequent Event [Line Items]  
Fixed interest rate 5.625%
After Five Years [Member] | LIBOR [Member]  
Subsequent Event [Line Items]  
Variable interest rate spread 2.72%