Supplemental disclosure for statement of cash flows (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Jul. 31, 2019 |
Jul. 31, 2018 |
Jul. 31, 2017 |
|
| Supplemental Cash Flow Elements [Abstract] | |||
| Interest Paid, Including Capitalized Interest, Operating and Investing Activities | $ 138 | $ 76 | $ 119 |
| Installment Loans Financed Amount | 0 | 0 | 69 |
| Capital Lease Obligation Cost Basis | $ 381 | $ 0 | $ 0 |
| X | ||||||||||
- Definition Capital lease obligation cost basis. No definition available.
|
| X | ||||||||||
- Definition Installment loans financed amount. No definition available.
|
| X | ||||||||||
- Definition Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- References No definition available.
|