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Income Taxes - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Income Taxes [Line Items]    
Aggregate undistributed earnings of the foreign subsidiaries $ 3,300,000  
Valuation allowances 149,000 79,000
State and local net operating loss carry forwards year start 2018  
State and local net operating loss carry forwards year end 2031  
State and Local Jurisdiction [Member]
    
Income Taxes [Line Items]    
Net operating loss carry forward 2,200,000  
Valuation allowances 1,700,000  
Overseas Jurisdictions [Member]
    
Income Taxes [Line Items]    
Net operating loss carry forward 3,100,000  
Valuation allowances $ 2,900,000