Organization and Business	12 Months Ended
Jul. 31, 2013
Accounting Policies [Abstract]
Organization and Business	Note 1 - Organization and Business: Generex Biotechnology Corporation (the Company) and its wholly-owned subsidiary Generex Pharmaceuticals, Inc. are engaged in the research and development of drug delivery systems and technology. Since its inception, the Company has devoted its efforts and resources to the development of a platform technology for the oral administration of large molecule drugs, including proteins, peptides, monoclonal antibodies, hormones and vaccines, which historically have been administered by injection, either subcutaneously or intravenously. Oral-lyn^TM the first product based on this platform technology, is in various stages of regulatory approval in different jurisdictions around the world. The Company’s wholly-owned subsidiary, Antigen Express, Inc. (Antigen), is engaged in research and development of technologies and immunomedicines for the treatment of malignant, infectious, autoimmune and allergic diseases. The Company’s immunomedicine products work by stimulating the immune system to either attack offending agents (i.e., cancer cells, bacteria, and viruses) or to stop attacking benign elements (i.e., self proteins and allergens). The immunomedicine products are based on two platform technologies that were discovered by an executive officer of Antigen, the Ii-Key hybrid peptides and Ii-Suppression. These technologies are expected to greatly boost immune cell responses which diagnose and treat the ailments and conditions. The Company is a development stage company, which has a limited history of operations and limited revenue to date. This revenue has been comprised mainly of the sale of our confectionary products, although the Company has recognized $600,000 relating to upfront license fees for the signing of license and distribution agreements for Generex Oral-lyn™. Additionally, the Company has several product candidates that are in various research or early stages of pre-clinical and clinical development. There can be no assurance that the Company will be successful in obtaining regulatory clearance for the sale of existing or any future products or that any of the Company’s products will be commercially viable.

Organization and Business

12 Months Ended

Jul. 31, 2013

Note 1 - Organization and Business:

Generex Biotechnology Corporation (the Company) and its wholly-owned subsidiary Generex Pharmaceuticals, Inc. are engaged in the research and development of drug delivery systems and technology. Since its inception, the Company has devoted its efforts and resources to the development of a platform technology for the oral administration of large molecule drugs, including proteins, peptides, monoclonal antibodies, hormones and vaccines, which historically have been administered by injection, either subcutaneously or intravenously. Oral-lyn^TM the first product based on this platform technology, is in various stages of regulatory approval in different jurisdictions around the world.

The Company’s wholly-owned subsidiary, Antigen Express, Inc. (Antigen), is engaged in research and development of technologies and immunomedicines for the treatment of malignant, infectious, autoimmune and allergic diseases. The Company’s immunomedicine products work by stimulating the immune system to either attack offending agents (i.e., cancer cells, bacteria, and viruses) or to stop attacking benign elements (i.e., self proteins and allergens). The immunomedicine products are based on two platform technologies that were discovered by an executive officer of Antigen, the Ii-Key hybrid peptides and Ii-Suppression. These technologies are expected to greatly boost immune cell responses which diagnose and treat the ailments and conditions.

The Company is a development stage company, which has a limited history of operations and limited revenue to date. This revenue has been comprised mainly of the sale of our confectionary products, although the Company has recognized $600,000 relating to upfront license fees for the signing of license and distribution agreements for Generex Oral-lyn™. Additionally, the Company has several product candidates that are in various research or early stages of pre-clinical and clinical development. There can be no assurance that the Company will be successful in obtaining regulatory clearance for the sale of existing or any future products or that any of the Company’s products will be commercially viable.