Summary of Activity of Level 3 Inputs Measured on Recurring Basis (Detail) - USD ($)	2 Months Ended	12 Months Ended
Mar. 31, 2014	Mar. 31, 2015	Jan. 31, 2014
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liability incurred (Note 7)	$ 0	$ 487,620	$ 50,936
Fair Value, Inputs, Level 3
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	0	2,354,624
Liability incurred (Note 7)	2,354,624	1,065,775
Gain on change in fair value of warrant and conversion feature liability		(833,545)
Ending Balance	2,354,624	2,586,854	0
Fair Value, Inputs, Level 3 \| Warrant Liability [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	0	2,354,624
Liability incurred (Note 7)	2,354,624	487,620
Gain on change in fair value of warrant and conversion feature liability		(697,748)
Ending Balance	2,354,624	2,144,496	0
Fair Value, Inputs, Level 3 \| Conversion Feature Liability [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	0	0
Liability incurred (Note 7)	0	578,155
Gain on change in fair value of warrant and conversion feature liability		(135,797)
Ending Balance	$ 0	$ 442,358	$ 0