Property, plant, and equipment (Details) - Schedule of property, plant and equipment - USD ($) $ in Thousands |
Jul. 31, 2016 |
Jul. 31, 2015 |
|---|---|---|
| Schedule of property, plant and equipment [Abstract] | ||
| Building and building improvements | $ 4,915 | $ 4,854 |
| Machinery and equipment (includes asset under capital lease - see Note 9) | 7,479 | 7,397 |
| Office furniture and computer equipment | 19,765 | 18,289 |
| Leasehold improvements | 5,172 | 4,958 |
| 37,331 | 35,498 | |
| Accumulated depreciation and amortization | (29,829) | (28,262) |
| 7,502 | 7,236 | |
| Land and land improvements | 712 | 712 |
| $ 8,214 | $ 7,948 |
| X | ||||||||||
- Definition Gross amount, at the balance sheet date, of Office furniture and computer equipment. No definition available.
|
| X | ||||||||||
- Definition Amount, net of accumulated depreciation, depletion and amortization, of property, plant, and equipment excluding land and land improvements. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before accumulated deprecation and depletion of real estate held for productive use and additions or improvements to real estate held for productive use, examples include, but are not limited to, walkways, driveways, fences, and parking lots. Excludes land held for sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|