Income taxes (Details) - Components of deferred tax assets (liabilities) - USD ($) $ in Thousands |
Jul. 31, 2019 |
Jul. 31, 2018 |
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| Deferred tax assets: | ||
| Federal tax carryforward losses | $ 12,558 | $ 13,975 |
| Provision for uncollectible accounts receivable | 1,116 | 791 |
| State and local tax carry forward losses | 144 | 352 |
| Accrued royalties | 101 | 102 |
| Stock compensation | 769 | 575 |
| Depreciation | 682 | 581 |
| Research and development and other tax credit carryforwards | 1,350 | 1,286 |
| Foreign tax carryforward losses | 3,783 | 2,771 |
| Intangibles and goodwill | 1,479 | 1,811 |
| Inventory | 1,086 | 1,786 |
| Accrued expenses | 1,127 | 1,194 |
| Other, net | 82 | 58 |
| Deferred tax assets | 24,277 | 25,282 |
| Prepaid expenses | (626) | (772) |
| Other, net | (124) | (39) |
| Deferred tax liabilities | (750) | (811) |
| Net deferred tax assets before valuation allowance | 23,527 | 24,471 |
| Less: valuation allowance | $ (23,527) | $ (24,471) |
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- References No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued royalties. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from research and development and other tax credit carry forwards. No definition available.
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- Definition Amount of federal tax carry forward losses as of the reporting date. No definition available.
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- Definition Amount of net deferred tax assets (liabilities) before valuation allowance as of the reporting date. No definition available.
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- Definition Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the allowance for doubtful accounts. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of deferred tax consequences attributable to taxable temporary differences derived from prepaid expenses. No definition available.
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