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Business Risk and Credit Risk Concentration Involving Cash - Narrative (Details)
3 Months Ended
Sep. 30, 2018
USD ($)
Customer
Sep. 30, 2017
USD ($)
Concentration Risk [Line Items]    
Revenue $ 33,000 $ 0
FDIC insurance amount per depositor $ 250,000  
Post-Production Film Company [Member]    
Concentration Risk [Line Items]    
Revenue from Number of Customers | Customer 1  
Revenue   $ 0