Quarterly report pursuant to Section 13 or 15(d)

Balance Sheet Details (Details Narrative)

v3.22.1
Balance Sheet Details (Details Narrative) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Nov. 30, 2020
Apr. 30, 2022
Apr. 30, 2021
Apr. 30, 2022
Apr. 30, 2021
Balance Sheet Details          
Depreciation and amortization expense   $ 47,000 $ 47,000 $ 143,000 $ 143,000
Intangible asset estimated useful life 85 months        
Intangible asset amortization expense   $ 17,000 $ 17,000 $ 52,000 $ 29,000