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Notes Receivable and Payable to Officers and Directors (Related Party Transactions) -Additional Information (Detail) - USD ($)
$ in Thousands
1 Months Ended
Mar. 30, 2016
Feb. 28, 2021
Feb. 29, 2020
Feb. 28, 2019
Feb. 28, 2018
Z-Axis Inc          
Related Party Transaction [Line Items]          
Notes receivable assigned with recourse $ 912     $ 398  
Notes repurchase right, percentage of outstanding principle balance 80.00%        
Secured borrowing $ 900        
Effective interest rate 9.00%        
Payment period 56 months        
Date of first required payment Apr. 16, 2016        
Notes payable to officers and directors       209  
Z-Axis Inc | Scenario, Forecast [Member]          
Related Party Transaction [Line Items]          
Notes receivable assigned with recourse   $ 189 $ 209    
Chief Executive Officer          
Related Party Transaction [Line Items]          
Note payable to officer       $ 290 $ 116