Quarterly report pursuant to Section 13 or 15(d)

401(k) Plan (Details Narrative)

v3.19.2
401(k) Plan (Details Narrative) - USD ($)
3 Months Ended 9 Months Ended
May 15, 2012
Apr. 30, 2019
Apr. 30, 2018
Apr. 30, 2019
Apr. 30, 2018
Retirement Benefits [Abstract]          
Maximum percentage of contribution permitted to employees on eligible compensation 100.00%        
Employer's matching contribution       100.00%  
Maximum percentage of employer's matching contribution of employee's annual compensation       3.00%  
Employer matching contributions made   $ 7,000 $ 25,000 $ 52,000 $ 74,000