Annual report pursuant to Section 13 and 15(d)

Note 15 - Stock-based Compensation (Details Textual)

v3.22.0.1
Note 15 - Stock-based Compensation (Details Textual)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Sep. 15, 2021
shares
Aug. 31, 2020
$ / shares
Nov. 30, 2021
USD ($)
$ / shares
shares
Aug. 31, 2020
$ / shares
shares
Jul. 31, 2020
$ / shares
shares
Dec. 31, 2018
shares
Nov. 30, 2021
USD ($)
$ / shares
shares
Nov. 30, 2020
USD ($)
$ / shares
shares
Aug. 31, 2021
$ / shares
Nov. 19, 2020
shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period (in shares)             100,002 12,000    
Class of Warrant or Right, Exercised in Period (in shares)             585,739 4,207,667    
Share-based Payment Arrangement, Expense | $             $ 3,200 $ 1,300    
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount | $     $ 6,800       $ 6,800 $ 7,700    
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)             1 year 9 months 25 days 2 years 9 months 7 days    
Restricted Stock Units (RSUs) [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted (in shares)             174,493 1,573,500    
Employees and Directors [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures, Total (in shares)             62,000 434,250    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)             3 years      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period (in shares)             100,002      
Shares Granted, Value, Share-based Payment Arrangement, Forfeited | $             $ 200      
Non-employee Contractors [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures, Total (in shares)               19,300    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)               1 year    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares (in shares)               11,000    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares, Ending Balance (in shares)               8,300    
Marketing Consultant [Member] | Incentive Stock Warrants [Member]                    
Class of Warrant Or Right, Granted in Period (in shares)           150,000   15,000    
Number of Consultants           2        
Class of Warrant or Right, Exercised in Period (in shares)     75,000   75,000          
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares         $ 0.155     $ 2.50    
Stock Issued During Period, Shares, Warrants Exercised (in shares)     68,005   68,005          
Warrants and Rights Outstanding | $               $ 10    
Former Employee [Member]                    
Severance Costs | $             $ 900      
Former Employee [Member] | Restricted Stock Units (RSUs) [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures and Expirations, Total (in shares)             87,500      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)     62,500              
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (in shares)     27,500              
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation | $     $ 400              
Restricted Stock, Shares Issued Net of Shares for Tax Withholdings (in shares)     35,000              
Restricted Stock, Value, Shares Issued Net of Tax Withholdings | $     $ 500              
The 2017 Stock Option Plan (2017 Plan) [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)     1,899,327       1,899,327      
The 2020 Equity Incentive Plan (2020 Plan) [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)                   2,500,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized (in shares) 1,400,000                  
The 2020 Equity Incentive Plan (2020 Plan) [Member] | Restricted Stock Units (RSUs) [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted (in shares)             174,493      
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures and Expirations, Total (in shares)             3,873      
The 2020 Equity Incentive Plan (2020 Plan) [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Employee [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted (in shares)               673,500    
The 2020 Equity Incentive Plan (2020 Plan) [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche One [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)             1 year      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage             33.33%      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested or Expected to Vest, in Period (in shares)     15,493       15,493      
The 2020 Equity Incentive Plan (2020 Plan) [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche One [Member] | Share-based Payment Arrangement, Employee [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage               33.33%    
The 2020 Equity Incentive Plan (2020 Plan) [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche Two [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage             33.33%      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, 20 Day Volume Weighted Average Closing Price (in dollars per share) | $ / shares     $ 30.00       $ 30.00      
The 2020 Equity Incentive Plan (2020 Plan) [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche Two [Member] | Share-based Payment Arrangement, Employee [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage               33.33%    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, 20 Day Volume Weighted Average Closing Price (in dollars per share) | $ / shares               $ 30.00    
The 2020 Equity Incentive Plan (2020 Plan) [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche Three [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage             33.33%      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, 20 Day Volume Weighted Average Closing Price (in dollars per share) | $ / shares     $ 40.00       $ 40.00      
The 2020 Equity Incentive Plan (2020 Plan) [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche Three [Member] | Share-based Payment Arrangement, Employee [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage               1.00%    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, 20 Day Volume Weighted Average Closing Price (in dollars per share) | $ / shares               $ 40.00    
The 2020 Equity Incentive Plan (2020 Plan) [Member] | Restricted Stock Units (RSUs) [Member] | Double Trigger Vesting [Member]                    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested or Expected to Vest, in Period (in shares)     150,000       150,000      
The 2020 Equity Incentive Plan (2020 Plan) [Member] | Chief Executive Officer [Member] | Restricted Stock Units (RSUs) [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted (in shares)       900,000            
The 2020 Equity Incentive Plan (2020 Plan) [Member] | Chief Executive Officer [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche One [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage   33.33%                
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, 20 Day Volume Weighted Average Closing Price (in dollars per share) | $ / shares   $ 20.00   $ 20.00            
The 2020 Equity Incentive Plan (2020 Plan) [Member] | Chief Executive Officer [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche Two [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage   33.33%                
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, 20 Day Volume Weighted Average Closing Price (in dollars per share) | $ / shares                 $ 30.00  
The 2020 Equity Incentive Plan (2020 Plan) [Member] | Chief Executive Officer [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche Three [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage             33.33%      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, 20 Day Volume Weighted Average Closing Price (in dollars per share) | $ / shares     $ 40.00       $ 40.00