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2. Significant Accounting Policies (Details Narrative) (USD $)
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4 Months Ended | 12 Months Ended | |
|---|---|---|---|
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Apr. 30, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Significant Accounting Policies Details Narrative [Abstract] | |||
| Restricted cash | $ 265,173 | $ 264,992 | |
| Accrued interest | 508 | 327 | |
| Letter of credit interest rate | 0.25% | ||
| 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 | ||
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Amount of accrued but unpaid interest on deposit liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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