Summary of Significant Accounting Policies (Policies)	9 Months Ended
Apr. 30, 2016
Accounting Policies [Abstract]
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	New Accounting Standards— In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, “Revenue from Contracts with Customers (Topic 606),” which supersedes the revenue recognition requirements in Accounting Standards Codification (“ASC”) 605, “Revenue Recognition.” This ASU is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The ASU also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. In August 2015, the FASB issued ASU No. 2015-14, which defers the effective date of the new revenue standard by one year, and would allow entities the option to early adopt the new revenue standard as of the original effective date. This standard will be effective for the first interim period within fiscal years beginning after December 15, 2017 (the Company’s first quarter of fiscal 2019 if it does not early adopt), using one of two retrospective application methods. The Company is evaluating the impacts, if any, the adoption of this accounting standard will have on the Company’s financial position or results of operations and cash flows and related disclosures and is determining the appropriate transition method. In February 2015, the FASB issued ASU No. 2015-02, “Consolidation (Topic 810): Amendments to the Consolidation Analysis,” which amends the consolidation requirements in ASC 810, “Consolidation.” This ASU affects reporting entities that are required to evaluate whether they should consolidate certain legal entities. All legal entities are subject to reevaluation under the revised consolidation model. Specifically, the amendments: (i) modify the evaluation of whether limited partnerships and similar legal entities are variable interest entities (“VIEs”) or voting interest entities, (ii) eliminate the presumption that a general partner should consolidate a limited partnership, (iii) affect the consolidated analysis of reporting entities that are involved with VIEs, particularly those that have fee arrangements and related party relationships and (iv) provide a scope exception for certain entities. The standard will be effective for the first interim period within fiscal years beginning after December 15, 2015 (the Company’s first quarter of fiscal 2017). The standard may be applied retrospectively or through a cumulative effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. The Company is evaluating the impacts, if any, the adoption of this accounting standard will have on the Company’s financial position or results of operations and cash flows. In April 2015, the FASB issued ASU No. 2015-03, “Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs.” The new standard requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The guidance in the new standard is limited to the presentation of debt issuance costs and does not affect the recognition and measurement of debt issuance costs. In June 2015, the FASB issued ASU No. 2015-15, “Interest - Imputation of Interest (Subtopic 835-30): Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements.” The guidance in ASU No. 2015-03 does not address presentation or subsequent measurement of debt issuance costs related to line-of-credit arrangements. Given the absence of authoritative guidance within ASU No. 2015-03 for debt issuance costs related to line-of-credit arrangements, the SEC staff stated that they would not object to an entity deferring and presenting debt issuance costs as an asset and subsequently amortizing the deferred debt issuance costs ratably over the term of the line-of-credit arrangement, regardless of whether there are any outstanding borrowings on the line-of-credit arrangement. The standard will be effective for the first interim period within fiscal years beginning after December 15, 2015 (the Company’s first quarter of fiscal 2017) and early adoption is permitted for financial statements that have not been previously issued. The standard should be applied on a retrospective basis. The adoption of this new accounting standard will amend presentation and disclosure requirements concerning debt issuance costs; but will not affect the Company’s overall financial position or results of operations and cash flows. In April 2015, the FASB issued ASU No. 2015-05, “Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement.” The standard provides guidance about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the software license element of the arrangement should be accounted for as an acquisition of a software license. If a cloud computing arrangement does not include a software license, it should be accounted for as a service contract. The standard will be effective for the first interim period within fiscal years beginning after December 15, 2015 (the Company’s first quarter of fiscal 2017) and may be adopted either retrospectively or prospectively. The adoption of this accounting standard is not expected to have a material impact on the Company’s financial position or results of operations and cash flows. In July 2015, the FASB issued ASU No. 2015-11, “Inventory (Topic 330): Simplifying the Measurement of Inventory.” This standard provides guidance on the measurement of inventory that is measured using first-in, first-out or average cost. An entity should measure in scope inventory at the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. The standard will be effective for the first interim period within fiscal years beginning after December 15, 2016 (the Company’s first quarter of fiscal 2018) and is required to be adopted prospectively and early adoption is permitted. The adoption of this accounting standard is not expected to have a material impact on the Company’s financial position or results of operations and cash flows. In September 2015, the FASB issued ASU No. 2015-16, “Simplifying the Accounting for Measurement-Period Adjustments.” The standard requires that adjustments to provisional amounts identified during the measurement period of a business combination be recognized in the reporting period in which those adjustments are determined, including the effect on earnings, if any, calculated as if the accounting had been completed at the acquisition date. The standard eliminates the previous requirement to retrospectively account for such adjustments but requires additional disclosures related to the income statement effects of adjustments to provisional amounts identified during the measurement period. The standard is effective for the annual period beginning after December 15, 2015 and interim periods within those annual periods (the Company’s first quarter of fiscal 2017), with early adoption permitted, and is to be applied prospectively. The Company has adopted this standard and will apply this standard, as applicable, on any future measurement period adjustments. In November 2015, the FASB issued ASU No. 2015-17, “Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes.” The standard changes how deferred taxes are classified on an entity’s balance sheets. The standard eliminates the current requirement for entities to present deferred tax liabilities and assets as current and noncurrent in a classified balance sheet. Instead, entities will be required to classify all deferred tax assets and liabilities as noncurrent. The standard is effective for financial statements issued for annual periods beginning after December 15, 2016 (the Company’s first quarter of fiscal 2018), with early adoption permitted, and may be applied prospectively or retrospectively. The adoption of this new accounting standard will amend presentation requirements, but will not affect the Company’s overall financial position or results of operations and cash flows. In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842),” which supersedes “Leases (Topic 840).” The standard requires lessees to recognize the assets and liabilities arising from all leases, including those classified as operating leases under previous accounting guidance, on the balance sheet and disclose key information about leasing arrangements. The standard also allows for an accounting policy election not to recognize on the balance sheet lease assets and liabilities for leases with a term of 12 months or less. Under the new guidance, lessees will be required to recognize a lease liability and a right-of-use asset on their balance sheets, while lessor accounting will be largely unchanged. The standard will be effective for fiscal years beginning after December 15, 2018, including interim periods within those years (the Company’s first quarter of fiscal 2020), and must be applied using a modified retrospective transition approach to leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with early adoption permitted. The Company is currently evaluating the impacts the adoption of this accounting standard will have on the Company’s financial position or results of operations and cash flows and related disclosures. In March 2016, the FASB issued ASU No. 2016-09, “Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.” The new guidance requires entities to record all excess tax benefits and tax deficiencies as income tax expense or benefit in the income statement when the awards vest or are settled. The guidance also requires entities to present excess tax benefits as an operating activity and cash paid to a taxing authority to satisfy statutory withholding as a financing activity on the statement of cash flows. Additionally, the guidance allows entities to make a policy election to account for forfeitures either upon occurrence or by estimating forfeitures. The standard is effective for financial statements issued for fiscal years beginning after December 15, 2016 (the Company’s first quarter of fiscal 2018), with early adoption permitted. The Company is currently evaluating the impacts the adoption of this accounting standard will have on the Company’s financial position or results of operations and cash flows.
Consolidated Financial Statements Policy [Table Text Block]	Consolidated Condensed Financial Statements— In the opinion of the Company, the accompanying Consolidated Condensed Financial Statements reflect all adjustments necessary to state fairly the Company’s financial position, results of operations and cash flows for the interim periods presented. All such adjustments are of a normal recurring nature. Results for interim periods are not indicative of the results for the entire fiscal year. The accompanying Consolidated Condensed Financial Statements should be read in conjunction with the audited Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended July 31, 2015. Certain information and footnote disclosures, including significant accounting policies, normally included in fiscal year financial statements prepared in accordance with accounting principles generally accepted in the U.S. (“GAAP”) have been condensed or omitted. The Consolidated Condensed Balance Sheet as of July 31, 2015 was derived from audited financial statements.
Use of Estimates	Use of Estimates— The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the balance sheet date and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates.

New Accounting Standards— In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, “Revenue from Contracts with Customers (Topic 606),” which supersedes the revenue recognition requirements in Accounting Standards Codification (“ASC”) 605, “Revenue Recognition.” This ASU is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The ASU also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. In August 2015, the FASB issued ASU No. 2015-14, which defers the effective date of the new revenue standard by one year, and would allow entities the option to early adopt the new revenue standard as of the original effective date. This standard will be effective for the first interim period within fiscal years beginning after December 15, 2017 (the Company’s first quarter of fiscal 2019 if it does not early adopt), using one of two retrospective application methods. The Company is evaluating the impacts, if any, the adoption of this accounting standard will have on the Company’s financial position or results of operations and cash flows and related disclosures and is determining the appropriate transition method.

In February 2015, the FASB issued ASU No. 2015-02, “Consolidation (Topic 810): Amendments to the Consolidation Analysis,” which amends the consolidation requirements in ASC 810, “Consolidation.” This ASU affects reporting entities that are required to evaluate whether they should consolidate certain legal entities. All legal entities are subject to reevaluation under the revised consolidation model. Specifically, the amendments: (i) modify the evaluation of whether limited partnerships and similar legal entities are variable interest entities (“VIEs”) or voting interest entities, (ii) eliminate the presumption that a general partner should consolidate a limited partnership, (iii) affect the consolidated analysis of reporting entities that are involved with VIEs, particularly those that have fee arrangements and related party relationships and (iv) provide a scope exception for certain entities. The standard will be effective for the first interim period within fiscal years beginning after December 15, 2015 (the Company’s first quarter of fiscal 2017). The standard may be applied retrospectively or through a cumulative effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. The Company is evaluating the impacts, if any, the adoption of this accounting standard will have on the Company’s financial position or results of operations and cash flows.

In April 2015, the FASB issued ASU No. 2015-03, “Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs.” The new standard requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The guidance in the new standard is limited to the presentation of debt issuance costs and does not affect the recognition and measurement of debt issuance costs. In June 2015, the FASB issued ASU No. 2015-15, “Interest - Imputation of Interest (Subtopic 835-30): Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements.” The guidance in ASU No. 2015-03 does not address presentation or subsequent measurement of debt issuance costs related to line-of-credit arrangements. Given the absence of authoritative guidance within ASU No. 2015-03 for debt issuance costs related to line-of-credit arrangements, the SEC staff stated that they would not object to an entity deferring and presenting debt issuance costs as an asset and subsequently amortizing the deferred debt issuance costs ratably over the term of the line-of-credit arrangement, regardless of whether there are any outstanding borrowings on the line-of-credit arrangement. The standard will be effective for the first interim period within fiscal years beginning after December 15, 2015 (the Company’s first quarter of fiscal 2017) and early adoption is permitted for financial statements that have not been previously issued. The standard should be applied on a retrospective basis. The adoption of this new accounting standard will amend presentation and disclosure requirements concerning debt issuance costs; but will not affect the Company’s overall financial position or results of operations and cash flows.

In April 2015, the FASB issued ASU No. 2015-05, “Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement.” The standard provides guidance about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the software license element of the arrangement should be accounted for as an acquisition of a software license. If a cloud computing arrangement does not include a software license, it should be accounted for as a service contract. The standard will be effective for the first interim period within fiscal years beginning after December 15, 2015 (the Company’s first quarter of fiscal 2017) and may be adopted either retrospectively or prospectively. The adoption of this accounting standard is not expected to have a material impact on the Company’s financial position or results of operations and cash flows.

In July 2015, the FASB issued ASU No. 2015-11, “Inventory (Topic 330): Simplifying the Measurement of Inventory.” This standard provides guidance on the measurement of inventory that is measured using first-in, first-out or average cost. An entity should measure in scope inventory at the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. The standard will be effective for the first interim period within fiscal years beginning after December 15, 2016 (the Company’s first quarter of fiscal 2018) and is required to be adopted prospectively and early adoption is permitted. The adoption of this accounting standard is not expected to have a material impact on the Company’s financial position or results of operations and cash flows.

In September 2015, the FASB issued ASU No. 2015-16, “Simplifying the Accounting for Measurement-Period Adjustments.” The standard requires that adjustments to provisional amounts identified during the measurement period of a business combination be recognized in the reporting period in which those adjustments are determined, including the effect on earnings, if any, calculated as if the accounting had been completed at the acquisition date. The standard eliminates the previous requirement to retrospectively account for such adjustments but requires additional disclosures related to the income statement effects of adjustments to provisional amounts identified during the measurement period. The standard is effective for the annual period beginning after December 15, 2015 and interim periods within those annual periods (the Company’s first quarter of fiscal 2017), with early adoption permitted, and is to be applied prospectively. The Company has adopted this standard and will apply this standard, as applicable, on any future measurement period adjustments.

In November 2015, the FASB issued ASU No. 2015-17, “Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes.” The standard changes how deferred taxes are classified on an entity’s balance sheets. The standard eliminates the current requirement for entities to present deferred tax liabilities and assets as current and noncurrent in a classified balance sheet. Instead, entities will be required to classify all deferred tax assets and liabilities as noncurrent. The standard is effective for financial statements issued for annual periods beginning after December 15, 2016 (the Company’s first quarter of fiscal 2018), with early adoption permitted, and may be applied prospectively or retrospectively. The adoption of this new accounting standard will amend presentation requirements, but will not affect the Company’s overall financial position or results of operations and cash flows.

In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842),” which supersedes “Leases (Topic 840).” The standard requires lessees to recognize the assets and liabilities arising from all leases, including those classified as operating leases under previous accounting guidance, on the balance sheet and disclose key information about leasing arrangements. The standard also allows for an accounting policy election not to recognize on the balance sheet lease assets and liabilities for leases with a term of 12 months or less. Under the new guidance, lessees will be required to recognize a lease liability and a right-of-use asset on their balance sheets, while lessor accounting will be largely unchanged. The standard will be effective for fiscal years beginning after December 15, 2018, including interim periods within those years (the Company’s first quarter of fiscal 2020), and must be applied using a modified retrospective transition approach to leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with early adoption permitted. The Company is currently evaluating the impacts the adoption of this accounting standard will have on the Company’s financial position or results of operations and cash flows and related disclosures.

In March 2016, the FASB issued ASU No. 2016-09, “Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.” The new guidance requires entities to record all excess tax benefits and tax deficiencies as income tax expense or benefit in the income statement when the awards vest or are settled. The guidance also requires entities to present excess tax benefits as an operating activity and cash paid to a taxing authority to satisfy statutory withholding as a financing activity on the statement of cash flows. Additionally, the guidance allows entities to make a policy election to account for forfeitures either upon occurrence or by estimating forfeitures. The standard is effective for financial statements issued for fiscal years beginning after December 15, 2016 (the Company’s first quarter of fiscal 2018), with early adoption permitted. The Company is currently evaluating the impacts the adoption of this accounting standard will have on the Company’s financial position or results of operations and cash flows.