Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details) - Schedule of stock option plans

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Stockholders' Equity (Details) - Schedule of stock option plans
6 Months Ended
Jan. 31, 2020
$ / shares
shares
Schedule of stock option plans [Abstract]  
Outstanding, Options at July 31, 2019 | shares 2,351,040
Outstanding, Weighted Avarage Exercise Price at July 31, 2019 | $ / shares $ 4.53
Awarded, Options | shares 1,500
Awarded, Weighted Avarage Exercise Price | $ / shares $ 3.32
Cancelled or expired, Options | shares (455,576)
Cancelled or expired, Weighted Avarage Exercise Price | $ / shares $ 3.58
Outstanding, Options at end of period | shares 1,896,964
Outstanding, Weighted Avarage Exercise Price at end of period | $ / shares $ 4.75
Outstanding, Weighted Average Remaining Contractual Term 2 years 255 days
Exercisable, Options at end of period | shares 1,486,162
Exercisable, Weighted Avarage Exercise Price at end of period | $ / shares $ 5.11
Exercisable, Weighted Average Remaining Contractual Term 1 year 146 days