Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Narrative (Details)

v3.22.2
Stockholders' Equity - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
 1 Months Ended 6 Months Ended 12 Months Ended
Jun. 22, 2022
Jun. 25, 2021
May 20, 2021
Aug. 31, 2021
Jun. 30, 2022
Dec. 31, 2020
Mar. 31, 2022
Dec. 31, 2021
Jun. 30, 2021
Mar. 31, 2021
Class of Stock [Line Items]                    
Common stock, shares authorized (in shares)         300,000,000     300,000,000    
Common stock, shares issued (in shares)         74,257,587     72,222,661    
Common stock, shares outstanding (in shares)         74,257,587     72,222,661    
Par value of common stock (USD per share)         $ 0.001     $ 0.001    
Preferred stock, shares authorized (in shares)         10,000,000     10,000,000    
Preferred stock, shares issued (in shares)         15,617     15,617    
Preferred stock, shares outstanding (in shares)         15,617     15,617    
Par value of preferred stock (USD per share)         $ 0.001     $ 0.001    
At the market offering | Jefferies LLC                    
Class of Stock [Line Items]                    
Shares of stock sold (in shares)         1,900,000          
Sale of stock, authorized amount       $ 50.0            
Shares of stock sold, net consideration         $ 6.9          
Shares of stock sold, price (USD per share)         $ 3.57          
Common Stock                    
Class of Stock [Line Items]                    
Common stock, shares outstanding (in shares)         74,257,000 56,003,000 74,098,000 72,222,000 66,679,000 59,719,000
Common Stock | Stock exchange, shares from existing shareholders                    
Class of Stock [Line Items]                    
Shares of stock sold (in shares)     5,000,000              
Preferred Stock                    
Class of Stock [Line Items]                    
Preferred stock, shares outstanding (in shares)         16,000 14,000 16,000 16,000 16,000 14,000
2020 Plan                    
Class of Stock [Line Items]                    
Shares of stock authorized pursuant to the 2020 Plan (in shares)           3,500,000        
Additional shares authorized (in shares) 3,000,000 2,250,000                
2019 Plan                    
Class of Stock [Line Items]                    
Shares of stock terminated under the 2019 Plan (in shares)           1,579,678        
Series A Preferred Stock                    
Class of Stock [Line Items]                    
Preferred stock, shares issued (in shares)         85     85    
Preferred stock, shares outstanding (in shares)         85     85    
Series B Preferred Stock                    
Class of Stock [Line Items]                    
Preferred stock, shares issued (in shares)         4,026          
Preferred stock, shares outstanding (in shares)         4,026     4,026    
Series C Preferred Stock                    
Class of Stock [Line Items]                    
Preferred stock, shares issued (in shares)         3,506     3,506    
Preferred stock, shares outstanding (in shares)         3,506     3,506    
Series D Preferred Stock                    
Class of Stock [Line Items]                    
Preferred stock, shares issued (in shares)         3,000     3,000    
Preferred stock, shares outstanding (in shares)         3,000     3,000    
Series E Preferred Stock                    
Class of Stock [Line Items]                    
Preferred stock, shares issued (in shares)         5,000     5,000    
Preferred stock, shares outstanding (in shares)         5,000     5,000    
Series E Preferred Stock | Preferred Stock                    
Class of Stock [Line Items]                    
Preferred stock, shares authorized (in shares)     5,000              
Series E Preferred Stock | Preferred Stock | Preferred share exchange                    
Class of Stock [Line Items]                    
Shares of stock sold (in shares)     5,000