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Warrants (Details)
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3 Months Ended | |||
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Mar. 31, 2013
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Dec. 31, 2012
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Nov. 30, 2012
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Feb. 29, 2012
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| Warrants and Rights Note Disclosure [Abstract] | ||||
| Warrants, outstanding | 945,594 | 945,594 | 945,594 | 945,594 |
| Exercise price of warrants | 11.41 | |||
| Warrants expiration date | Feb. 06, 2014 |
| X | ||||||||||
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- Definition
Date the warrants or rights are exercisable, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The exercise price of each class of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate amount of each class of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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