Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Material Changes in Financial Condition (Detail)

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Commitments and Contingencies - Material Changes in Financial Condition (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Commitments And Contingencies Disclosure [Abstract]        
Total Assets $ 55,689 $ 82,016    
Total Liabilities 18,478 15,809    
Total Stockholders' Equity $ 37,211 $ 66,207 $ 30,890 $ 44,125