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Income Taxes - Net Operating Loss and Research Credit Carryforwards (Details) - USD ($)
$ in Millions
 6 Months Ended
Dec. 31, 2020
Jun. 30, 2020
Federal | Federal    
Operating Loss Carryforwards [Line Items]    
Net operating loss $ 45.0  
Net operating loss subject to sections 382,383 Yes  
Federal | Federal | Minimum    
Operating Loss Carryforwards [Line Items]    
Net operating loss, expiration in year 2031  
Federal | Federal | Maximum    
Operating Loss Carryforwards [Line Items]    
Net operating loss, expiration in year 2038  
Federal | Federal | Research credit    
Operating Loss Carryforwards [Line Items]    
Research credit $ 9.4  
Research credit subject to sections 382,383 Yes  
Federal | Federal | Research credit | Minimum    
Operating Loss Carryforwards [Line Items]    
Research credit, expiration in year 2027  
Federal | Federal | Research credit | Maximum    
Operating Loss Carryforwards [Line Items]    
Research credit, expiration in year 2040  
State | Utah    
Operating Loss Carryforwards [Line Items]    
Net operating loss $ 2.7  
Net operating loss subject to sections 382,383 No  
State | Utah | Minimum    
Operating Loss Carryforwards [Line Items]    
Net operating loss, expiration in year 2021  
State | Utah | Research credit    
Operating Loss Carryforwards [Line Items]    
Research credit $ 11.7  
Research credit subject to sections 382,383 No  
State | Utah | Research credit | Minimum    
Operating Loss Carryforwards [Line Items]    
Research credit, expiration in year 2021  
State | Utah | Research credit | Maximum    
Operating Loss Carryforwards [Line Items]    
Research credit, expiration in year 2034  
State | California    
Operating Loss Carryforwards [Line Items]    
Net operating loss $ 3.7  
Net operating loss subject to sections 382,383 No  
State | California | Minimum    
Operating Loss Carryforwards [Line Items]    
Net operating loss, expiration in year 2027  
State | California | Maximum    
Operating Loss Carryforwards [Line Items]    
Net operating loss, expiration in year 2042  
State | California | Research credit    
Operating Loss Carryforwards [Line Items]    
Research credit $ 3.6  
Research credit subject to sections 382,383 No  
State | California | Research credit | Minimum    
Operating Loss Carryforwards [Line Items]    
Research credit, expiration in year 2027  
State | Texas | Research credit    
Operating Loss Carryforwards [Line Items]    
Research credit   $ 0.1
Research credit subject to sections 382,383 No  
State | Texas | Research credit | Minimum    
Operating Loss Carryforwards [Line Items]    
Research credit, expiration in year 2039  
State | Texas | Research credit | Maximum    
Operating Loss Carryforwards [Line Items]    
Research credit, expiration in year 2040  
State | Other    
Operating Loss Carryforwards [Line Items]    
Net operating loss $ 11.5  
Net operating loss subject to sections 382,383 Yes  
State | Other | Minimum    
Operating Loss Carryforwards [Line Items]    
Net operating loss, expiration in year 2027  
State | Other | Maximum    
Operating Loss Carryforwards [Line Items]    
Net operating loss, expiration in year 2040  
Foreign    
Operating Loss Carryforwards [Line Items]    
Net operating loss $ 9.4  
Net operating loss subject to sections 382,383 No