Annual report pursuant to Section 13 and 15(d)

Discontinued Operations (Additional Information) (Detail)

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Discontinued Operations (Additional Information) (Detail) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Discontinued Operations and Disposal Groups [Line Items]    
Gain on Disposal of Discontinued Operations (Note 5), net of tax $ 0 $ (5,817,807)