Licensing Agreements	12 Months Ended
Apr. 30, 2012
Licensing Agreements [Abstract]
Licensing Agreements Disclosure [Text Block]	Note 5. Licensing Agreements During fiscal 2011, the Company was a party to several different licensing agreements. During April 2011, the Company terminated all of these licensing agreements with the exception of the agreement concerning Irinophore C, which is described further below. All rights related to all other licensing agreements that were terminated during April 2011 were returned to the underlying companies and no amounts were payable under these other agreements when they were terminated. In February 2010, the Company entered into an exclusive option agreement with a Canadian company for which it paid and expensed $40,000 (Canadian) during the Company’s fiscal 2010 year. The option agreement granted the Company the exclusive right to review Irinophore C, a nanoparticle drug compound, for the treatment of various forms of cancer, including melanoma, prostate, breast, and lung cancer through April 2011. During the option year, the Company performed various TumorGraft testing on the nanoparticle compound. In March 2011, the Company exercised its option to license Irinophore C, a liposomal formulation of Irinotecan. Under the terms of the agreement, the Company’s exercise of the option resulted in amounts due to the Canadian company of $85,000 (Canadian) comprised of the option exercise price and reimbursement to the Canadian company for past patent costs, which was expensed in the Company’s fiscal year ended April 30, 2011. The Company satisfied this obligation during fiscal 2012. On the first anniversary of the agreement (March 2012), an additional license fee of $45,000 (Canadian) became due, which is recognized as a liability as of April 30, 2012. Commencing with the second anniversary of the agreement (March 2013), the Company will be obligated to pay a minimum annual royalty of $10,000 (Canadian). Under the terms of the license agreement, the Company will be required to pay up to $3.0 million in development milestones, if achieved. Upon commercialization, the Company would also be required to make royalty and sales milestone payments based upon revenues.

Licensing Agreements

12 Months Ended

Apr. 30, 2012

Licensing Agreements Disclosure [Text Block]

Note 5. Licensing Agreements

During fiscal 2011, the Company was a party to several different licensing agreements. During April 2011, the Company terminated all of these licensing agreements with the exception of the agreement concerning Irinophore C, which is described further below. All rights related to all other licensing agreements that were terminated during April 2011 were returned to the underlying companies and no amounts were payable under these other agreements when they were terminated.

In February 2010, the Company entered into an exclusive option agreement with a Canadian company for which it paid and expensed $40,000 (Canadian) during the Company’s fiscal 2010 year. The option agreement granted the Company the exclusive right to review Irinophore C, a nanoparticle drug compound, for the treatment of various forms of cancer, including melanoma, prostate, breast, and lung cancer through April 2011. During the option year, the Company performed various TumorGraft testing on the nanoparticle compound. In March 2011, the Company exercised its option to license Irinophore C, a liposomal formulation of Irinotecan. Under the terms of the agreement, the Company’s exercise of the option resulted in amounts due to the Canadian company of $85,000 (Canadian) comprised of the option exercise price and reimbursement to the Canadian company for past patent costs, which was expensed in the Company’s fiscal year ended April 30, 2011. The Company satisfied this obligation during fiscal 2012. On the first anniversary of the agreement (March 2012), an additional license fee of $45,000 (Canadian) became due, which is recognized as a liability as of April 30, 2012. Commencing with the second anniversary of the agreement (March 2013), the Company will be obligated to pay a minimum annual royalty of $10,000 (Canadian). Under the terms of the license agreement, the Company will be required to pay up to $3.0 million in development milestones, if achieved. Upon commercialization, the Company would also be required to make royalty and sales milestone payments based upon revenues.