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Stock Based Compensation - Restricted Stock (Details) - Restricted Stock [Member] - Long Term Equity Incentive Plan [Member] - $ / shares
9 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Number of Shares, Restricted Stock    
Unvested balance at Period Start 343,919  
Granted 287,750  
Vested (98,502)  
Forfeited (8,385)  
Unvested balance at Period End 524,782  
Weighted Average Grant Date Fair Value, Restricted Stock    
Unvested balance at Period Start,USD per share $ 6.46 $ 9.37
Granted, USD per share 4.62  
Vested, USD per share 10.37  
Forfeited, USD per share 13.72  
Unvested balance at Period End, USD per share $ 6.46