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Leases - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Nov. 23, 2020
Sep. 30, 2020
Feb. 28, 2022
Feb. 28, 2021
Operating Lease, Cost     $ 600 $ 600
Operating Lease, Payments     600 600
Short-term Lease, Cost     0  
Gain on sale of building     0 1,724
Incremental borrowing rate on leases 12.50%      
Financing lease expiry date Dec. 01, 2023      
Financing lease payments $ 277   0 277
Variable lease costs     0  
Operating Lease, Lease Income     200 $ 300
Maximum [Member]        
Lease Expiration Year       2025
Chief Executive Officer And Ordway Properties L L C [Member]        
Lease Rent Expense     $ 400 $ 400
Chief Executive Officer And Ordway Properties L L C [Member] | Maximum [Member]        
Lease Expiration Year     2025  
Pennyslavania [Member]        
Proceeds from Sale of Buildings   $ 2,028    
Gain on sale of building     $ 1,724