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Stockholders' Deficit (Details 2) - Restricted Stock Units (RSUs) [Member]
12 Months Ended
Dec. 31, 2019
$ / shares
shares
Number of shares  
Number of shares, Unvested as of December 31, 2018 | shares
Number of shares, Granted | shares 760,000
Number of shares, Vested | shares (37,875)
Number of shares, Forfeited | shares (418,975)
Number of shares, Unvested as of December 31, 2019 | shares 303,150
Weighted average grant date fair value per share  
Weighted average grant date fair value per share, Unvested as of December 31, 2018 | $ / shares
Weighted average grant date fair value per share, Granted | $ / shares 4.44
Weighted average grant date fair value per share, Vested | $ / shares 2.07
Weighted average grant date fair value per share, Forfeited | $ / shares (4.70)
Weighted average grant date fair value per share, Unvested as of December 31, 2019 | $ / shares $ 3.58