Quarterly report pursuant to Section 13 or 15(d)

Summary of significant accounting policies - Additional Information (Details)

v3.20.2
Summary of significant accounting policies - Additional Information (Details)
 1 Months Ended 3 Months Ended 9 Months Ended
Mar. 25, 2020
Jan. 01, 2020
shares
Dec. 17, 2019
Jan. 31, 2020
May 31, 2020
USD ($)
May 31, 2019
USD ($)
May 31, 2020
USD ($)
May 31, 2019
USD ($)
Aug. 31, 2019
USD ($)
Advertising cost, net         $ 206,000   $ 389,000    
Advertising costs           $ 366,000   $ 948,000  
Weighted average number of common shares outstanding for the earnings per share increased | shares   24,634,560              
Working capital changes         700,000   $ 1,300,000    
Shares conversion ratio 1   0.025       1    
Unbilled accounts receivable         2,133,000   $ 2,133,000   $ 1,137,000
Research and developments costs         1,500,000 700,000 3,400,000 3,100,000  
Capitalized computer software cost         0 500,000 $ 0 $ 500,000  
Capitalized Computer Software, Period Increase (Decrease)           $ 0      
Concentration of credit risk percent             93.00%    
Concentration of credit Risk description             No one individual client represents more than 10% of revenues for the three and nine months ended May 31, 2020    
Short term accrued workers compensation         500,000   $ 500,000    
Long term accrued workers compensation         1,000,000   1,000,000    
Short term assets         2,400,000   $ 2,400,000    
Risk-free interest rate             0.47%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate             134.00%    
Short term liabilities         2,000,000   $ 2,000,000    
Long term assets         1,700,000   1,700,000    
Long term liabilities         5,500,000   5,500,000    
Short-term asset and workers compensation - deposits         500,000   500,000    
Long-term asset and workers compensation - deposits         300,000   300,000    
Settlement claims             500,000    
Accounts Receivable [Member]                  
Unbilled accounts receivable         270,000   $ 270,000   $ 170,000
Preferred Stock                  
Shares conversion ratio       1     1    
Everest Program [Member]                  
Long term accrued workers compensation         $ 100,000   $ 100,000