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Related Party Transactions (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2018
Dec. 31, 2017
Related Party Transaction [Line Items]      
Due to related party $ 127,000
StockCross [Member]      
Related Party Transaction [Line Items]      
Related party revenues 2,916,000 8,694,000  
Related party expenses 307,000 1,271,000  
Due from Stockcross 1,625,000 1,625,000  
Insurance commissions and fees received from related party $ 14,000 $ 14,000