Employee benefit plans (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Jul. 31, 2020 |
Jul. 31, 2019 |
Jul. 31, 2018 |
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| Employee benefit plans (Details) [Line Items] | |||
| Employer matched contributions percentage of employees contribution | 50.00% | 50.00% | 50.00% |
| Defined contribution plan, maximum annual contributions per employee, percent | 10.00% | 10.00% | 10.00% |
| Share based 401k employer match expense (in Dollars) | $ 782 | $ 832 | $ 839 |
| Defined benefit plan, contribution in accrued liabilities (in Dollars) | $ 481 | $ 475 | $ 493 |
| Defined contribution plan minimum annual contribution percent | 13.00% | ||
| Minimum age of employee for saving contribution | 25 years | ||
| Defined benefit plan minimum annual investment return percentage | 1.00% | ||
| Defined contribution pension plan expiration date | Dec. 31, 2019 | ||
| Swiss Employees [Member] | |||
| Employee benefit plans (Details) [Line Items] | |||
| Employer matched contributions percentage of employees contribution | 40.00% | ||
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- Definition Defined benefit plan, contribution in accrued liabilities. No definition available.
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- Definition Percentage of minimum annual investment return. No definition available.
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- Definition Defined contribution pension plan expiration date. No definition available.
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- Definition Percentage of minimum contribution(s) required for future periods to a defined contribution plan. No definition available.
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- References No definition available.
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- Definition Employer matched contributions percentage of the employees contribution. No definition available.
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- Definition Minimum age of employee for saving contribution. No definition available.
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- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. No definition available.
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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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