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Debt - Convertible Notes (Details) - Convertible Debt - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 7 Months Ended 12 Months Ended
Apr. 01, 2021
Jan. 16, 2020
Mar. 29, 2019
Jun. 30, 2019
Jan. 16, 2020
Dec. 31, 2020
Line of Credit Facility [Line Items]            
Proceeds from issuance of subordinated convertible promissory notes     $ 1.7      
Interest rate on convertible notes       5.00% 10.00%  
Accumulated interest on subordinated debt   $ 0.1     $ 0.1  
Net proceeds from the conversion of convertible debt to preferred stock   $ 1.8        
Conversion rate (in dollars per share)   $ 0.67     $ 0.67  
Conversion of notes to stock (in shares)   2,709,018        
Preferred Stock            
Line of Credit Facility [Line Items]            
Preferred stock converted to common stock (in shares)           111,548
Preferred Stock | Subsequent Event            
Line of Credit Facility [Line Items]            
Preferred stock converted to common stock (in shares) 1,721,023          
Common Stock            
Line of Credit Facility [Line Items]            
Common stock issued upon preferred stock conversion (in shares)           22,310
Common Stock | Subsequent Event            
Line of Credit Facility [Line Items]            
Common stock issued upon preferred stock conversion (in shares) 344,205