Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies - Schedule of Cash and Cash Equivalents (Detail)

v2.4.1.9
Significant Accounting Policies - Schedule of Cash and Cash Equivalents (Detail) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Mar. 31, 2014
Dec. 31, 2013
Cash and Cash Equivalents [Abstract]        
Cash $ 52,081us-gaap_Cash $ 10,974us-gaap_Cash    
Money market fund 4,919,385us-gaap_MoneyMarketFundsAtCarryingValue 6,251,471us-gaap_MoneyMarketFundsAtCarryingValue    
Cash and cash equivalents $ 4,971,466us-gaap_CashAndCashEquivalentsAtCarryingValue $ 6,262,445us-gaap_CashAndCashEquivalentsAtCarryingValue $ 163,040us-gaap_CashAndCashEquivalentsAtCarryingValue $ 303,020us-gaap_CashAndCashEquivalentsAtCarryingValue