Annual report pursuant to Section 13 and 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 $)
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Cash and Cash Equivalents [Abstract]      
Cash $ 10,974us-gaap_Cash $ 100,761us-gaap_Cash  
Money market fund 6,251,471us-gaap_MoneyMarketFundsAtCarryingValue 202,259us-gaap_MoneyMarketFundsAtCarryingValue  
Cash and cash equivalents $ 6,262,445us-gaap_CashAndCashEquivalentsAtCarryingValue $ 303,020us-gaap_CashAndCashEquivalentsAtCarryingValue $ 542,483us-gaap_CashAndCashEquivalentsAtCarryingValue