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Income Taxes - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Taxes [Line Items]      
Income distributable to shareholders, minimum 90.00%    
Income tax benefit $ 31 $ 115  
Federal statutory rates 34.00%    
Income taxes paid $ 976 $ 617 $ 612
Maximum [Member]
     
Income Taxes [Line Items]      
Expiration of net operating loss carryforwards 2032    
Minimum [Member]
     
Income Taxes [Line Items]      
Expiration of net operating loss carryforwards 2027