Consolidated and combined statements of operations and comprehensive loss (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating expenses
Research and development	$ 18,079,262us-gaap_ResearchAndDevelopmentExpense	$ 7,598,750us-gaap_ResearchAndDevelopmentExpense	$ 6,045,395us-gaap_ResearchAndDevelopmentExpense
General and administrative	4,296,447us-gaap_GeneralAndAdministrativeExpense	1,776,905us-gaap_GeneralAndAdministrativeExpense	1,635,623us-gaap_GeneralAndAdministrativeExpense
Total operating expenses	22,375,709us-gaap_OperatingExpenses	9,375,655us-gaap_OperatingExpenses	7,681,018us-gaap_OperatingExpenses
Other income (expenses)
Bank charges and financing costs	(461,587)us-gaap_InterestExpense	(42,923)us-gaap_InterestExpense	(9,470)us-gaap_InterestExpense
Change in fair value of derivative liabilities (Note 14)	949,185	961,641
Amortization and extinguishment of remaining discount on preferred shares upon conversion of preferred shares	(1,884,237)	(386,420)	(45,448)
Other (expenses) income	(254,890)us-gaap_OtherNonoperatingIncomeExpense	108,942us-gaap_OtherNonoperatingIncomeExpense	64,032us-gaap_OtherNonoperatingIncomeExpense
Total other income (expenses)	(1,651,529)us-gaap_NonoperatingIncomeExpense	641,240us-gaap_NonoperatingIncomeExpense	9,114us-gaap_NonoperatingIncomeExpense
Net loss before income taxes	(24,027,238)	(8,734,415)	(7,671,904)
Income tax recovery (provision) (Note 13)	222us-gaap_IncomeTaxExpenseBenefit	5,044us-gaap_IncomeTaxExpenseBenefit	(42,294)us-gaap_IncomeTaxExpenseBenefit
Net loss	(24,027,016)us-gaap_NetIncomeLoss	(8,729,371)us-gaap_NetIncomeLoss	(7,714,198)us-gaap_NetIncomeLoss
Net loss per common stock - basic and diluted (Note 12)	$ (2.75)us-gaap_EarningsPerShareBasicAndDiluted	$ (49.52)us-gaap_EarningsPerShareBasicAndDiluted	$ (40.23)us-gaap_EarningsPerShareBasicAndDiluted
Basic and diluted weighted average common stock outstanding (Note 12)	8,667,387	301,745	301,745
Comprehensive loss:
Net loss	(24,027,016)us-gaap_NetIncomeLoss	(8,729,371)us-gaap_NetIncomeLoss	(7,714,198)us-gaap_NetIncomeLoss
Other comprehensive loss - unrealized loss on securities available for sale	(3,855)
Comprehensive loss	$ (24,030,871)us-gaap_ComprehensiveIncomeNetOfTax	$ (8,729,371)us-gaap_ComprehensiveIncomeNetOfTax	$ (7,714,198)us-gaap_ComprehensiveIncomeNetOfTax

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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