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Equity - Narrative (Details)
11 Months Ended 12 Months Ended
Nov. 06, 2020
USD ($)
$ / shares
shares
Sep. 18, 2020
shares
Dec. 24, 2019
USD ($)
$ / shares
shares
Dec. 31, 2019
USD ($)
shares
Dec. 31, 2020
USD ($)
shares
Jan. 31, 2019
USD ($)
Sep. 17, 2020
shares
Subsidiary, Sale of Stock [Line Items]              
Reverse stock split ratio   0.2          
Common stock, shares outstanding (in shares) | shares   67,200,000   67,178,054 82,575,064   335,900,000
Proceeds from the issuance of common stock       $ 50,415,000 $ 50,000,000 $ 46,084,000  
Transaction costs       $ 912,000 $ 48,000 1,707,000  
Number of common stock shares into which warrants may be converted (in shares) | shares     3,358,732        
Exercise price of warrants (in dollars per share) | $ / shares     $ 1.44        
Warrants outstanding (in shares) | shares       8,620,082 5,821,137    
Dividends paid       $ 0 $ 0 $ 0  
Private placement              
Subsidiary, Sale of Stock [Line Items]              
Consideration received on sale of stock $ 50,000,000.0            
Shares issued (in shares) | shares 14,970,060   35,075,690        
Share price (in dollars per share) | $ / shares $ 3.34   $ 1.43        
Proceeds from the issuance of common stock $ 50,000,000.0   $ 50,000,000.0        
Transaction costs     $ 900,000        
Number of common stock shares into which warrants may be converted (in shares) | shares     5,261,350        
Exercise price of warrants (in dollars per share) | $ / shares     $ 1.58        
Minimum volume weighted average common stock price to warrant exercise price, premium, percentage     50.00%