Quarterly report pursuant to Section 13 or 15(d)

Supplemental disclosure for statement of cash flows (Details)

v3.19.2
Supplemental disclosure for statement of cash flows (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Apr. 30, 2019
Apr. 30, 2018
Apr. 30, 2019
Apr. 30, 2018
Supplemental disclosure for statement of cash flows (Details) [Line Items]        
Income Taxes Paid     $ 94 $ 65
Interest Paid     138 61
Capital Lease Obligation Cost Basis     $ 381 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in Shares)     238,230  
Stock Issued During Period, Value, Employee Benefit Plan $ 832 $ 782 $ 832 $ 782
Directors And Officers [Member]        
Supplemental disclosure for statement of cash flows (Details) [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in Shares) 203,511   203,511  
Stock Issued During Period Shares Stock Options Exercised1 (in Shares) 23,376   23,376