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Loss Per Share - Schedule of Basic and Diluted Earnings Per Share (Parenthetical) (Detail) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
Earnings Per Share [Abstract] |  |
Reverse stock split ratio | 0.2 us-gaap_StockholdersEquityNoteStockSplitConversionRatio1 | 0.2 us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
Reverse stock split description | 1-for-5 | 1-for-5
Effective date of reverse stock split | Mar. 19, 2015 | Mar. 19, 2015

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- Definition Effective date of reverse stock split. + References No definition available. + Details
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- Details
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- Definition Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Stock Split -URI http://asc.fasb.org/extlink&oid=6525746 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770 + Details
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- Definition Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section C + Details
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