Property and equipment, net (Details) - USD ($)	10 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Total property and equipment		$ 879,329	$ 442,501
Accumulated depreciation		(323,014)	(60,064)
Property and equipment, net		556,315	382,437
Depreciation expense	$ 11,997	277,231	49,881
Computers and computer equipment
Property, Plant and Equipment [Line Items]
Total property and equipment		276,263	177,240
Laboratory equipment
Property, Plant and Equipment [Line Items]
Total property and equipment		13,368	13,368
Manufacturing equipment
Property, Plant and Equipment [Line Items]
Total property and equipment		421,999	0
Website development costs
Property, Plant and Equipment [Line Items]
Total property and equipment		159,836	0
Capital in progress
Property, Plant and Equipment [Line Items]
Total property and equipment		$ 7,863	$ 251,893