Commitments and Contingencies	12 Months Ended
Jul. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 9 - Commitments and Contingencies: Emmaus LOI On January 16, 2017, the Company and Emmaus Life Sciences, Inc. (“Emmaus”) entered into a letter of intent (“LOI”) contemplating that the Company will acquire a controlling interest in the outstanding capital stock of Emmaus for a total consideration of $225,000,000 in cash and Generex stock. The purchase price for shares of stock of the Emmaus Shares will consist of $10,000,000 in cash and $215,000,000 worth of shares of the Company’s common stock (“Company Shares”). The Company paid an aggregate $4,000,000 in cash deposits to Emmaus under the LOI. On May 16, 2017, the LOI was terminated and Emmaus repaid the $4,000,000. Pending Litigation The Company is a defendant in one legal proceeding relating to alleged breach of contract and claims against certain of the Company’s original buccal delivery patents. The Company is also a defendant in two legal proceedings brought by a former executive officer and her affiliate. These legal proceedings have been reported in the Company’s prior periodic reports. No activity has occurred in these cases in several years, and the Company now considers them dormant. In December 2011, a vendor of the Company commenced an action against the Company and its subsidiary, Generex Pharmaceuticals, Inc., in the Ontario Superior Court of Justice claiming damages for unpaid invoices including interest in the amount of $429,000, in addition to costs and further interest. The Company responded to this statement of claim and also asserted a counterclaim in the proceeding for $200,000 arising from the vendor’s breach of contract and detinue, together with interest and costs. On November 16, 2012, the parties agreed to settle this action and the Company has agreed to pay the plaintiff $125,000, following the spinout of its subsidiary Antigen, from the proceeds of any public or private financing related to Antigen subsequent to such spinout. Each party agreed to execute mutual releases to the claim and counterclaim to be held in trust by each party’s counsel until payment of the settlement amount. Following payment to the plaintiff, the parties agree that a Consent Dismissal Order without costs will be filed with the court. If the Company fails to make the payment following completion of any post-spinout financing related to Antigen or any other subsidiaries, the Plaintiffs may take out a judgment in the amount of the claim plus interest of 3% per annum and costs fixed at $25,000. This has been accrued in the financial statements. On August 22, 2017, Generex received a letter from counsel for Three Brothers Trading LLC, d/b/a Alternative Execution Group (“AEXG”), claiming breach of a Memorandum of Understanding (“MOU”) between Generex and AEXG. The MOU related to AEXG referring potential financing candidate to Generex. The letter from AEXG counsel claimed that Generex’s acceptance of $3,000,000 in financing from Pharma Trials, LLC, in March 2017, violated the provisions of the MOU prohibiting Generex from seeking other financing, with certain exceptions, for a period of 60 days after execution of the MOU. AEXG has demanded at least $210,000 in cash and 84,000 warrants for Generex stock convertible at $2.50 per share, for attorney’s fees and costs. Generex management believes the Pharma Trials, LLC Financing was not subject to the prohibitions because the representative of Pharma Trials, LLC was a director of Generex, and for other reasons. On June 28, 2018, the Company was named in respect of a claim by Burrard Pharmaceutical Enterprises Ltd. and Moa’yeri Kayhan for unspecified damages and other remedies issued by the Supreme Court of British Columbia. The claim is made in connection with one advanced against Burrard and Kayhan by Middle East Pharmaceutical Factory L.L.C., a foreign corporation, for fraudulent or negligent misrepresentation. Middle East alleges that it was misled by Burrard and Kayhan into believing that Burrard had rights to distribute Generex product in the Middle East. Burrard and Kayhan allege that they did have rights in that regard, which the Company denies. The matter remains at the pleadings stage and the Company is investigating the facts. There are rental agreements in effect at Hema Diagnostics Systems, Grainland Pharmacy Inc. and Empire State Pharmacy Inc. and paid out in the following periods: $92,430 in fiscal year 2019, $82,469 in fiscal year 2020 and $9,306 in fiscal year 2021. With respect to all litigation, as additional information concerning the estimates used by the Company becomes known, the Company reassesses its position both with respect to accrued liabilities and other potential exposures.

Commitments and Contingencies

12 Months Ended

Jul. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Note 9 - Commitments and Contingencies:

Emmaus LOI

On January 16, 2017, the Company and Emmaus Life Sciences, Inc. (“Emmaus”) entered into a letter of intent (“LOI”) contemplating that the Company will acquire a controlling interest in the outstanding capital stock of Emmaus for a total consideration of $225,000,000 in cash and Generex stock. The purchase price for shares of stock of the Emmaus Shares will consist of $10,000,000 in cash and $215,000,000 worth of shares of the Company’s common stock (“Company Shares”). The Company paid an aggregate $4,000,000 in cash deposits to Emmaus under the LOI. On May 16, 2017, the LOI was terminated and Emmaus repaid the $4,000,000.

Pending Litigation

The Company is a defendant in one legal proceeding relating to alleged breach of contract and claims against certain of the Company’s original buccal delivery patents. The Company is also a defendant in two legal proceedings brought by a former executive officer and her affiliate. These legal proceedings have been reported in the Company’s prior periodic reports. No activity has occurred in these cases in several years, and the Company now considers them dormant.

In December 2011, a vendor of the Company commenced an action against the Company and its subsidiary, Generex Pharmaceuticals, Inc., in the Ontario Superior Court of Justice claiming damages for unpaid invoices including interest in the amount of $429,000, in addition to costs and further interest. The Company responded to this statement of claim and also asserted a counterclaim in the proceeding for $200,000 arising from the vendor’s breach of contract and detinue, together with interest and costs. On November 16, 2012, the parties agreed to settle this action and the Company has agreed to pay the plaintiff $125,000, following the spinout of its subsidiary Antigen, from the proceeds of any public or private financing related to Antigen subsequent to such spinout. Each party agreed to execute mutual releases to the claim and counterclaim to be held in trust by each party’s counsel until payment of the settlement amount. Following payment to the plaintiff, the parties agree that a Consent Dismissal Order without costs will be filed with the court. If the Company fails to make the payment following completion of any post-spinout financing related to Antigen or any other subsidiaries, the Plaintiffs may take out a judgment in the amount of the claim plus interest of 3% per annum and costs fixed at $25,000. This has been accrued in the financial statements.

On August 22, 2017, Generex received a letter from counsel for Three Brothers Trading LLC, d/b/a Alternative Execution Group (“AEXG”), claiming breach of a Memorandum of Understanding (“MOU”) between Generex and AEXG. The MOU related to AEXG referring potential financing candidate to Generex. The letter from AEXG counsel claimed that Generex’s acceptance of $3,000,000 in financing from Pharma Trials, LLC, in March 2017, violated the provisions of the MOU prohibiting Generex from seeking other financing, with certain exceptions, for a period of 60 days after execution of the MOU. AEXG has demanded at least $210,000 in cash and 84,000 warrants for Generex stock convertible at $2.50 per share, for attorney’s fees and costs. Generex management believes the Pharma Trials, LLC Financing was not subject to the prohibitions because the representative of Pharma Trials, LLC was a director of Generex, and for other reasons.

On June 28, 2018, the Company was named in respect of a claim by Burrard Pharmaceutical Enterprises Ltd. and Moa’yeri Kayhan for unspecified damages and other remedies issued by the Supreme Court of British Columbia. The claim is made in connection with one advanced against Burrard and Kayhan by Middle East Pharmaceutical Factory L.L.C., a foreign corporation, for fraudulent or negligent misrepresentation. Middle East alleges that it was misled by Burrard and Kayhan into believing that Burrard had rights to distribute Generex product in the Middle East. Burrard and Kayhan allege that they did have rights in that regard, which the Company denies. The matter remains at the pleadings stage and the Company is investigating the facts.

There are rental agreements in effect at Hema Diagnostics Systems, Grainland Pharmacy Inc. and Empire State Pharmacy Inc. and paid out in the following periods: $92,430 in fiscal year 2019, $82,469 in fiscal year 2020 and $9,306 in fiscal year 2021.

With respect to all litigation, as additional information concerning the estimates used by the Company becomes known, the Company reassesses its position both with respect to accrued liabilities and other potential exposures.