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Debt - PPP Loan (Details) - USD ($)
Aug. 26, 2020
Apr. 21, 2020
Apr. 12, 2020
Aug. 28, 2019
Debt Instrument [Line Items]        
Long term debt $ 56,583,000     $ 48,699,000
PPP Loan | Loans Payable        
Debt Instrument [Line Items]        
Debt face amount 10,000,000.0   $ 10,000,000.0  
Interest rate   1.00%    
Long term debt $ 10,000,000.0      
Loan payable term   2 years