Organization and Business - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended	2 Months Ended	12 Months Ended
	Jan. 15, 2014	Jun. 30, 2012	May 31, 2013	Dec. 31, 2011	Sep. 30, 2014	Dec. 31, 2013	Nov. 05, 2013	Sep. 30, 2013	Dec. 31, 2012
Organization and Nature of Operations [Line Items]
Percentage of Charge				50.00%
Impairment of License		$ 345,000
Cash					14,636,602	3,551,832		4,100,841	534,046
Authorized capital to be raised							100,000,000
Stock issued during period, shares, new issues			489,501
Stock issued during period, value, new issues	15,000,000
Proceeds from issuance initial public offering	13,800,000
Sabby Investors
Organization and Nature of Operations [Line Items]
Stock issued during period, shares, new issues	5,000,000
Warrant | Sabby Investors
Organization and Nature of Operations [Line Items]
Stock issued during period, shares, new issues	2,500,000
siRNA License
Organization and Nature of Operations [Line Items]
Impairment of License				$ 345,000