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Recent Events - Additional Information (Detail) (USD $)
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Jun. 30, 2013
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May 17, 2013
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Mar. 31, 2013
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Dec. 31, 2012
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| Regulatory Matters [Line Items] | ||||
| Common stock par value | $ 0.001 | $ 0.001 | $ 0.001 | |
| Common stock, shares authorized | 150,000,000 | 150,000,000 | 120,000,000 | 150,000,000 |
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- Details
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- Definition
Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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