Stockholders' Equity - Additional Information (Detail) (USD $)	1 Months Ended			2 Months Ended	3 Months Ended		9 Months Ended		77 Months Ended	2 Months Ended	1 Months Ended					2 Months Ended	1 Months Ended																			6 Months Ended		1 Months Ended											6 Months Ended	1 Months Ended
	Aug. 31, 2012	Oct. 31, 2011	Apr. 30, 2008	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	May 31, 2013 IPO	Jun. 30, 2010 Warrant	Sep. 30, 2013 Private Placement memorandum	Aug. 31, 2013 Private Placement memorandum	Jun. 30, 2012 Private Placement memorandum	Jun. 30, 2009 Private Placement memorandum	May 31, 2013 Private Placement memorandum	Dec. 31, 2008 Investor Relations Services	Jun. 30, 2010 LPC	Jun. 30, 2007 Founders	Mar. 31, 2012 Equity Unit Purchase Agreements LPC	Dec. 31, 2011 Equity Unit Purchase Agreements LPC	Nov. 30, 2011 Equity Unit Purchase Agreements LPC	Jun. 30, 2011 Equity Unit Purchase Agreements LPC	Nov. 30, 2010 Equity Unit Purchase Agreements LPC	Oct. 31, 2010 Equity Unit Purchase Agreements LPC	Sep. 30, 2010 Equity Unit Purchase Agreements LPC	Jul. 31, 2010 Equity Unit Purchase Agreements LPC	Jun. 30, 2010 Equity Unit Purchase Agreements LPC	Jun. 30, 2010 Equity Unit Purchase Agreements LPC Minimum	Jun. 30, 2010 Equity Unit Purchase Agreements LPC Maximum	Apr. 30, 2012 Equity Unit Purchase Agreements LPC Scenario 1	Apr. 30, 2012 Equity Unit Purchase Agreements LPC Scenario 2	Apr. 30, 2012 Equity Unit Purchase Agreements LPC Scenario 3	Jun. 30, 2010 LPC financing agreement LPC	Jun. 30, 2011 Investors	Jun. 30, 2013 Investors	Dec. 31, 2012 Investors	Apr. 30, 2011 Investors Private Placement memorandum	May 31, 2010 Investors Private Placement memorandum	Jan. 31, 2010 Investors Private Placement memorandum	Dec. 31, 2009 Investors Private Placement memorandum	Nov. 30, 2009 Investors Private Placement memorandum	Jun. 30, 2009 Investors Private Placement memorandum	Aug. 31, 2007 Investors Private Placement memorandum	Aug. 31, 2007 Investors Additional Shares	Jan. 31, 2010 Investors Additional Shares Private Placement memorandum	Jun. 30, 2011 Placement Agent	Aug. 31, 2007 Placement Agent	Jun. 30, 2013 Placement Agent	May 31, 2010 Placement Agent Private Placement memorandum	Jan. 31, 2010 Placement Agent Private Placement memorandum	Jun. 30, 2009 Placement Agent Private Placement memorandum	Nov. 30, 2007 MD Anderson Cancer Center	Apr. 30, 2008 BioPathHoldingsInc	Feb. 29, 2008 BioPathHoldingsInc	Feb. 29, 2008 Ogden Golf Co.
Shareholders Equity [Line Items]
Common stock and warrants issued, shares											571,429								6,505,994	166,667	172,414	83,333	164,853	135,135	135,135	125,000	375,000	571,429			89,286	96,154	185,185	12,000		11,664,665								3,975,000	1,333,334			530,833	1,496,499	78,000	360,000	66,000		200,000	80,000
Common stock issued , value										$ 489,501									$ 6,506																			$ 1,794,205						$ 993,750	$ 1,000,000
Common stock issued , shares	50,000													150,000																					5,980,685												598,069						3,138,889
Common stock issued merger transactions, shares																																																							38,023,578
Common stock retained shareholders, shares																																																								3,600,000
Common stock issued for services, value	18,500		180,000											18,500			40,000
Common stock issued, additional shares			24
Common stock issued for service, shares																	100,000
Common stock and warrant issued, shares															660,000																								780,000	2,700,000						900,000
Common stock repurchased, shares																																							780,000	2,700,000			660,000			900,000
Common stock and warrants issued, Value																																							273,000		675,000	675,000	165,000			225,000
Warrants exercisable period																																							2 years	2 years			2 years			2 years
Warrants exercise price																												$ 1.50											$ 1.50	$ 1.50			$ 1.50			$ 1.50
Equity purchase agreement value																		7,000,000											50,000	1,000,000
Agreement period																												24 months
Proceeds from issuance of common stock and warrant from LPC							5,403,106	973,146	13,442,489											50,000	50,000	25,000	50,000	50,000	50,000	50,000	150,000	200,000			25,000	25,000	50,000
Committed shares issued																				2,084	2,084	1,042	2,084	2,084	2,084	2,084	6,251				1,042	1,042	2,084	566,801
Warrants issued, shares																				0	0	0	0	0	0	0	0
Common stock issued for exercise of warrant (in shares)		1,920,000
Common stock issued for exercise of warrant		576,000
Common stock issued for services				$ 346,201	$ 708,600	$ 795,001	$ 0	$ 18,500	$ 318,500			$ 3,220,966	$ 3,220,966			$ 2,000,198
Common Stock, shares issued					62,219,050		75,380,214		75,380,214																												3,300,337
Common Stock, shares outstanding					62,219,050		75,380,214		75,380,214
Preferred Stock, shares outstanding					0		0		0