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11. Subsequent Events: (Detail) (USD $)
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3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
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Mar. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | 1,000,000 | 20,000,000 | 450,000 | |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (Deprecated 2012-01-31) (in Dollars per share) | $ 0.03 | |||
| Line of Credit, Increase Granted from the Chairman (in Dollars) | $ 4,000,000 | |||
| Line of Credit (in Dollars) | $ 2,500,000 | |||
| Line of Credit Facility, Interest Rate During Period | 1.00% | 1.00% | ||
| X | ||||||||||
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- Definition
The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets). No definition available.
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| X | ||||||||||
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- Definition
The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets). No definition available.
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| X | ||||||||||
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- Definition
The effective interest rate during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The weighted average price at which option holders acquired shares when converting their stock options into shares under the plan during the reporting period. No definition available.
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| X | ||||||||||
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- Definition
Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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