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Commitments, Contingencies and Other Commitments, Contingencies and Other (Details 3) (Details) - shares
12 Months Ended 24 Months Ended
Feb. 01, 2019
Dec. 31, 2018
May 01, 2018
Dec. 31, 2017
Mar. 01, 2017
Jan. 03, 2017
Dec. 31, 2018
Dec. 15, 2020
Dec. 15, 2019
Loss Contingencies [Line Items]                  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period       7 years     6 years    
Chief Executive Officer [Member]                  
Loss Contingencies [Line Items]                  
Deferred Compensation Arrangement with Individual, Shares Issued 87,500 87,500              
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period             5 years    
Chief Financial Officer [Member]                  
Loss Contingencies [Line Items]                  
Deferred Compensation Arrangement with Individual, Shares Issued     18,750            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period               3 years  
Executive C [Member]                  
Loss Contingencies [Line Items]                  
Deferred Compensation Arrangement with Individual, Shares Issued           42,254      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period                 3 years
Executive D [Member]                  
Loss Contingencies [Line Items]                  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period   6 years   7 years 5 years