Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Litigation (Details)

v3.21.2
Commitments and Contingencies - Litigation (Details)
shares in Thousands, $ in Millions
12 Months Ended
Jul. 02, 2021
USD ($)
Jun. 04, 2021
USD ($)
shares
Apr. 22, 2021
USD ($)
Mar. 19, 2021
USD ($)
shares
Feb. 18, 2021
USD ($)
Jan. 27, 2021
item
Sep. 17, 2020
USD ($)
Apr. 29, 2020
USD ($)
Aug. 22, 2019
shares
May 31, 2021
USD ($)
shares
May 31, 2020
USD ($)
shares
Loss Contingencies [Line Items]                      
Legal accrual recorded | $                   $ 10.6 $ 0.0
Number of independent directors | item           3          
Compensation policy period           5 years          
Common stock, shares issued                   626,123 519,262
Shares subject to arbitration       3,100              
Delaware Shareholder Derivative Lawsuit [Member]                      
Loss Contingencies [Line Items]                      
Damages sought | $       $ 4.1              
Delaware Shareholder Derivative Lawsuit [Member] | Subsequent Event                      
Loss Contingencies [Line Items]                      
Amount awarded to other party | $   $ 3.0                  
Delaware Shareholder Derivative Lawsuit [Member] | Michael Klump, Jordan Naydenov And David Welch [Member] | Subsequent Event                      
Loss Contingencies [Line Items]                      
Percentage of awards forfeited   100.00%                  
Options forfeited   2,250                  
Delaware Shareholder Derivative Lawsuit [Member] | Scott A Kelly | Subsequent Event                      
Loss Contingencies [Line Items]                      
Percentage of awards forfeited   60.00%                  
Options forfeited   750                  
Delaware Shareholder Derivative Lawsuit [Member] | Nader Pourhassan [Member] | Subsequent Event                      
Loss Contingencies [Line Items]                      
Percentage of awards forfeited   100.00%                  
Warrants forfeited   2,000                  
Options forfeited   400                  
Placement Agent Arbitration Claim [Member]                      
Loss Contingencies [Line Items]                      
Damages sought | $         $ 1.8   $ 1.8 $ 0.6      
Amount awarded from other party | $     $ 0.1                
Pestell Employment Dispute [Member]                      
Loss Contingencies [Line Items]                      
Award vesting period                 3 years    
Stock units granted, shares                 8,300    
Stock option granted, Shares                 400    
Prosta Gene Arbitration [Member]                      
Loss Contingencies [Line Items]                      
Shares subject to arbitration       3,100              
Prosta Gene Arbitration [Member] | Subsequent Event                      
Loss Contingencies [Line Items]                      
Amount awarded to other party | $ $ 6.2                    
Legal fees, etc. | $ $ 1.4