| 6. DEBT (Details Narrative) - USD ($) | 12 Months Ended | ||
|---|---|---|---|
| Apr. 30, 2015 | Apr. 30, 2014 | Apr. 30, 2013 | |
| Gain (loss) on settlement of debt | $ 0 | $ (3,993,295) | $ (39,000) | 
| Payment toward license | 0 | 3,500,000 | $ 646,750 | 
| License payable | $ 1,000,000 | $ 0 | |
| Licensing fees | |||
| Common stock issued to pay licensing fees, shares issued | 2,000,000 | ||
| Common stock issued to pay licensing fees, value | $ 226,000 | ||
| Gain (loss) on settlement of debt | $ 174,000 | ||
| Note holder | |||
| Common stock issued to pay licensing fees, shares issued | 250,000 | ||
| Common stock issued to pay licensing fees, value | $ 45,500 | ||
| Gain (loss) on settlement of debt | $ (19,500) | ||
| X | ||||||||||
| 
- Definition Common stock issued to pay licensing fees, shares issued No definition available. 
 | 
| X | ||||||||||
| 
- Definition Common stock issued to pay licensing fees, value No definition available. 
 | 
| X | ||||||||||
| 
- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. No definition available. 
 | 
| X | ||||||||||
| 
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 | 
| X | ||||||||||
| 
- Definition The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 | 
| X | ||||||||||
| 
- Details 
 | 
| X | ||||||||||
| 
- Details 
 |