Annual report pursuant to Section 13 and 15(d)

Stock Warrants (Changes in Warrants) (Detail)

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Stock Warrants (Changes in Warrants) (Detail)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Class Of Warrant Or Right [Line Items]    
Warrants Outstanding, Beginning of Year 656,641 867,628
Exercised During the Year (59,300) 0
Issued During the Year 6,551,654 0
Forfeited During the Year (1,220) (210,987)
Warrants Outstanding, End of Year 7,147,775 656,641