Quarterly report pursuant to Section 13 or 15(d)

Discontinued Operations - Reconciliation of Gross Proceeds to Net Proceeds From Sale Transaction (Details)

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Discontinued Operations - Reconciliation of Gross Proceeds to Net Proceeds From Sale Transaction (Details) - USD ($)
3 Months Ended 12 Months Ended
Nov. 30, 2022
Aug. 31, 2022
Mar. 12, 2021
Jan. 03, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Reserve for potential collectability concerns $ (4,004,000) $ (4,004,000)    
Overall business | Disposal by sale        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Gross proceeds 19,166,000 19,166,000   $ 19,200,000
Cash received at closing – asset sale (9,500,000) (9,500,000)    
Cash received at closing – working capital (166,000) (166,000)    
Gross note receivable 9,500,000 9,500,000   $ 9,500,000
Less:  Transaction reconciliation – estimated working capital adjustments (2,604,000) (2,604,000) $ (10,700,000)  
Adjusted Note Receivable 6,896,000 6,896,000    
Reserve for estimated potential claims (2,892,000) (2,892,000)    
Long-term note receivable, estimated net realizable value $ 0 $ 0