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Summary of Significant Accounting Policies - Summary of Components of Accumulated OCI (Detail) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Other Comprehensive Income (Loss), Net of Tax [Abstract]    
Unrealized gain on foreign currency translation $ 65,390us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax $ 252,101us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax