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Derivatives (Details Textual) (USD $)
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1 Months Ended | 6 Months Ended | 12 Months Ended | |||
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Dec. 19, 2012
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Dec. 27, 2012
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Jan. 31, 2012
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Jun. 30, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Derivative (Textual) | ||||||
| Description of risk free interest rate determination | Risk-free interest rate was determined by management using the average of 5 and 7 year and the 3-month Treasury Bill as of the respective measurement date. | |||||
| Expected dividend yield | ||||||
| Description of probability of stock offering | Probability of a stock offering is 25% for each quarter of the next five years. | |||||
| Range of percentage of existing shares offered | 35.00% | 35.00% | 35.00% | 35.00% | 35.00% | |
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Series E Preferred Stock [Member]
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| Derivative (Textual) | ||||||
| Exercise price of warrant | $ 0.26 | |||||