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Stock-based Compensation (Details 2) - Restricted Stock Units [Member]
6 Months Ended
Jun. 30, 2020
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]  
Balance at beginning | shares 5,877
Granted | shares
Vested | shares (4,543)
Forfeited | shares
Balance at ending | shares 1,334
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]  
Balance at beginning | $ / shares $ 30.28
Granted | $ / shares
Vested | $ / shares 1.42
Forfeited | $ / shares
Balance at ending | $ / shares $ 1.80