|
2. Significant Accounting Policies (Details Narrative) (USD $)
|
4 Months Ended | 12 Months Ended | 3 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Apr. 30, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Jul. 31, 2013
|
Jul. 31, 2013
Stock Options [Member]
|
Jul. 31, 2012
Stock Options [Member]
|
Jul. 31, 2013
Warrants [Member]
|
Jul. 31, 2012
Warrants [Member]
|
Jul. 31, 2013
Convertible Debt [Member]
|
Jul. 31, 2012
Convertible Debt [Member]
|
|
| Significant Accounting Policies Details Narrative [Abstract] | ||||||||||
| Restricted cash | $ 265,173 | $ 264,992 | $ 265,310 | |||||||
| Accrued interest | 508 | 327 | ||||||||
| Letter of credit interest rate | 0.25% | 0.20% | ||||||||
| Options to purchase common shares | 7,614,381 | 6,972,967 | ||||||||
| Warrants to purchase common shares | 9,090,295 | 8,112,696 | ||||||||
| Convertible Debt Amount | 800,000 | 800,000 | ||||||||
| Convertible Debt Shares | 1,357,143 | 1,357,143 | ||||||||
| Warrants To Purchase Common Shares Outstanding | 456,000 | |||||||||
| Convertible Preferred Shares | 15,403,006 | |||||||||
| Preferred Shares Converted To Common Shares | 13,677,274 | |||||||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||||||||
| Antidilutive securities | 9,110,592 | 2,070,000 | 9,090,292 | 882,500 | 1,357,143 | 951,126 | ||||
| Convertible Debt | $ 800,000 | $ 650,000 | ||||||||