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Segment Reporting (Narrative) (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2018
USD ($)
item
Mar. 31, 2017
USD ($)
Segment Reporting [Abstract]    
Number of reportable segments | item 2  
VNB Wealth [Member]    
Segment Reporting [Abstract]    
Management fees | $ $ 25 $ 25