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Income Taxes - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Income Tax Disclosure      
Statutory tax rate 21.00% 21.00% 21.00%
Federal business tax credits $ 800    
Deferred Tax Assets, Net of Valuation Allowance 63,200    
Valuation allowance (64,312) $ (64,354)  
Federal      
Income Tax Disclosure      
Operating loss carryforwards 178,100    
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration 44,000    
State and Local Jurisdiction      
Income Tax Disclosure      
Operating loss carryforwards 139,700    
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration $ 5,000