Condensed Consolidated and Combined Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents (Note 4)	$ 52,918,327	$ 11,006,392
Short-term investments	2,714,100	2,820,600
Accounts and other amounts receivable	66,526	27,946
Prepayments	547,812	63,975
Deferred offering costs		1,377,438
Total current assets	56,246,765	15,296,351
Property and equipment	67,379	75,465
Other	135,344	277,290
Total assets	56,449,488	15,649,106
Current liabilities
Accounts payable and accrued liabilities	1,220,695	2,350,660
Current portion of bank loan (Note 5)		250,000
Other	16,907	19,445
Total current liabilities	1,237,602	2,620,105
Warrant liabilities (Note 8)	107,597	221,320
Redemption option on preferred stock (Note 3)		800,206
Accrued tax payable on preferred stock (Note 3)	1,797,412	1,797,412
Bank loan (Note 5)		2,036,489
Other	7,047	8,560
Total liabilities	1,352,246	7,484,092
Redeemable convertible preferred stock (Note 3)
Redeemable convertible preferred stock		73,858,722
Common stock (Note 6)
Additional paid-in capital	124,713,456
Deficit accumulated in the development stage	(69,616,225)	(65,693,708)
Total stockholders' equity (deficit)	55,097,242	(65,693,708)
Total liabilities, redeemable convertible preferred stock, and stockholders' equity (deficit)	56,449,488	15,649,106
AQXP Canada [Member] | Series A Exchangeable Preferred Shares [Member]
Redeemable convertible preferred stock (Note 3)
Redeemable convertible preferred stock		13,329,639
AQXP Canada [Member] | AQXP Canada, Series B Exchangeable Preferred Shares [Member]
Redeemable convertible preferred stock (Note 3)
Redeemable convertible preferred stock		10,684,093
AQXP Canada [Member] | Series C Exchangeable Preferred Shares [Member]
Redeemable convertible preferred stock (Note 3)
Redeemable convertible preferred stock		3,830,961
Aquinox USA [Member] | Series A Preferred Stock [Member]
Redeemable convertible preferred stock (Note 3)
Redeemable convertible preferred stock		11,157,138
Aquinox USA [Member] | Series B Preferred Stock [Member]
Redeemable convertible preferred stock (Note 3)
Redeemable convertible preferred stock		21,091,150
Aquinox USA [Member] | Series C Preferred Stock [Member]
Redeemable convertible preferred stock (Note 3)
Redeemable convertible preferred stock		13,765,741
Aquinox USA [Member] | Common Stock [Member]
Common stock (Note 6)
Common stock	11
Total stockholders' equity (deficit)	$ 11