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Schedule of Changes in Stockholders' Deficit (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Equity [Abstract]    
Beginning balance $ (80,297) $ (79,379)
Net loss (14,330) (3,932)
Stock-based compensation 2  
Ending balance $ (94,625) $ (83,311)