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DEBT - Component of Debt and Reconciliation (Details) - USD ($)
$ in Thousands
Apr. 30, 2022
Jul. 31, 2021
Feb. 28, 2019
Line of Credit Facility [Line Items]      
Less: unamortized discounts and issuance costs (a) $ (4,459) $ (5,793)  
Total debt, net 10,481 9,147  
Debt issuance costs, net 91 196  
Umpqua Revolver      
Line of Credit Facility [Line Items]      
Revolving credit facility 0 0  
7.50% Convertible Senior Note due March 1, 2024      
Line of Credit Facility [Line Items]      
Principal amount of long term debt 14,940 14,940  
7.50% Convertible Senior Note due March 1, 2024 | SPHG Holdings      
Line of Credit Facility [Line Items]      
Total debt, net $ 10,572 $ 9,343  
Debt instrument, stated interest rate     7.50%