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Debt - Convertible Notes (Details) - USD ($)
3 Months Ended 12 Months Ended
Apr. 05, 2019
Mar. 31, 2019
Dec. 31, 2019
Mar. 31, 2020
Feb. 28, 2019
Jan. 31, 2019
Dec. 31, 2018
Nov. 30, 2018
Jun. 30, 2018
Jan. 31, 2018
Debt                    
Shares issued (in shares) 100,000                  
Common stock, value, subscriptions $ 1,000,000.0                  
Price per share (in USD per share) $ 12.41                  
Common stock, shares issued (in shares)     52,746,728 52,746,728            
Convertible Notes | Maximum                    
Debt                    
Conversion price discount per original agreement (in a percentage)     30.00%              
Convertible Notes                    
Debt                    
Common stock, shares issued (in shares) 1,100,000                  
Shares issued, price per share (in USD per share) $ 8.69                  
Extinguishment of debt loss $ 300,000                  
Board members                    
Debt                    
Shares issued (in shares) 40,286                  
Common stock, value, subscriptions $ 500,000                  
Convertible Notes                    
Debt                    
Note principal outstanding     $ 0              
Note Principal Amount     8,750,400              
Debt Issuance Costs     (189,158)              
Carrying Value upon Issuance     $ 4,670,070              
Interest rate (in percentage)     5.00%              
Maturity term (in months)     18 months              
Redemption multiple upon default     1.5              
Accretion of debt discount   $ 500,000                
Convertible Notes | Fair Value of Embedded Derivatives                    
Debt                    
Fair Value of Embedded Derivatives     $ (3,891,172)              
Convertible Notes - Board Of Directors | Board members | Convertible Notes                    
Debt                    
Note Principal Amount     $ 3,500,000       $ 3,500,000      
January 2018                    
Debt                    
Note Principal Amount                   $ 5,000,000
Debt Issuance Costs                   (35,969)
Carrying Value upon Issuance                   2,306,320
January 2018 | Fair Value of Embedded Derivatives                    
Debt                    
Fair Value of Embedded Derivatives                   $ (2,657,711)
June 2018                    
Debt                    
Note Principal Amount                 $ 1,000,000  
Debt Issuance Costs                 (3,000)  
Carrying Value upon Issuance                 272,784  
June 2018 | Fair Value of Embedded Derivatives                    
Debt                    
Fair Value of Embedded Derivatives                 $ (724,216)  
November 2018                    
Debt                    
Note Principal Amount               $ 1,150,400    
Debt Issuance Costs               (50,646)    
Carrying Value upon Issuance               1,078,627    
November 2018 | Fair Value of Embedded Derivatives                    
Debt                    
Fair Value of Embedded Derivatives               $ (21,127)    
December 2018                    
Debt                    
Note Principal Amount             150,000      
Debt Issuance Costs             (14,310)      
Carrying Value upon Issuance             132,833      
December 2018 | Fair Value of Embedded Derivatives                    
Debt                    
Fair Value of Embedded Derivatives             $ (2,857)      
January 2019                    
Debt                    
Note Principal Amount           $ 450,000        
Debt Issuance Costs           (29,358)        
Carrying Value upon Issuance           237,760        
January 2019 | Fair Value of Embedded Derivatives                    
Debt                    
Fair Value of Embedded Derivatives           $ (182,882)        
February 2019                    
Debt                    
Note Principal Amount         $ 1,000,000          
Debt Issuance Costs         (55,875)          
Carrying Value upon Issuance         641,746          
February 2019 | Fair Value of Embedded Derivatives                    
Debt                    
Fair Value of Embedded Derivatives         $ (302,379)          
November 2018 and December 2018 Notes | Convertible Notes | Minimum                    
Debt                    
Conversion price discount per original agreement (in a percentage)     0.00%              
January 2019 and February 2019 Notes | Convertible Notes                    
Debt                    
Conversion price discount per original agreement (in a percentage)     15.00%