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Commitments and Contingencies (Details) - USD ($)
Jun. 30, 2019
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]    
Restricted cash, long-term $ 5,000,000 $ 5,195,000
Restricted cash, short term $ 0 $ 100,000
Tinuum Group, LLC    
Related Party Transaction [Line Items]    
Limited guarantees. percent 50.00%