Annual report pursuant to Section 13 and 15(d)

Summary of significant accounting policies - Derivative liabilities (Details)

v3.20.2
Summary of significant accounting policies - Derivative liabilities (Details) - USD ($)
12 Months Ended
Aug. 31, 2020
Aug. 31, 2019
Reclassification to APIC due to note settlements, exchanges or conversions $ (1,979,000)  
Unbilled Contracts Receivable 2,303,000 $ 1,418,000
Beginning balance 3,756,000  
Change in fair value (1,777,000)  
March 2019 Conversion Feature [Member]    
Beginning balance of conversion features   2,852,000
Reclassification to APIC due to note settlements, exchanges or conversions (1,784,000)  
Change in fair value of conversion features (1,068,000)  
March 2019 Warrant Liability [Member]    
Reclassification to APIC due to note settlements, exchanges or conversions (195,000)  
Beginning balance of warrant liability   $ 904,000
Change in fair value of warrant liability $ (709,000)