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Stockholders' Equity (Deficiency) (Summary of Compensation Expense for Stock Options Granted to Non-employees from 10K) (Details) (Stock Incentive Plan To Non Employees [Member])
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3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
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Mar. 31, 2013
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Mar. 31, 2012
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Dec. 31, 2012
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Dec. 31, 2011
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|
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Stock Incentive Plan To Non Employees [Member]
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| Expected life (years) minimum | 2 years 8 months 12 days | |||
| Expected life (years) maximum | 5 years | |||
| Expected volatility minimum | 44.20% | |||
| Expected volatility maximum | 50.00% | |||
| Weighted-average volatility | 44.20% | 47.40% | ||
| Risk-free interest rate, Minimum | 0.37% | |||
| Risk-free interest rate, Maximum | 0.60% | |||
| Dividend yield | 0.00% | 0.00% | ||