Equipment (Details) - USD ($) $ in Thousands	7 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Equipment, gross		$ 462	$ 386
Less: Accumulated depreciation		(145)	(57)
Equipment, net		317	329
Depreciation expense	$ 6	94	51
Laboratory Equipment [Member]
Property, Plant and Equipment [Line Items]
Equipment, gross		425	356
Software [Member]
Property, Plant and Equipment [Line Items]
Equipment, gross		20	10
Furniture, Fixtures, And Equipment [Member]
Property, Plant and Equipment [Line Items]
Equipment, gross		$ 17	$ 20