Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 17,296	$ 14,602
Less: accumulated depreciation	(4,007)	(2,402)
Total property and equipment, net	13,289	12,200
Depreciation	1,600	1,300
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 4,647	$ 2,976
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Useful life	7 years	7 years
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Useful life	20 years	20 years
Machinery & equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 8,193	$ 7,853
Machinery & equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful life	1 year	1 year
Machinery & equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful life	12 years	12 years
Furniture
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2,712	$ 1,698
Furniture | Minimum
Property, Plant and Equipment [Line Items]
Useful life	1 year	1 year
Furniture | Maximum
Property, Plant and Equipment [Line Items]
Useful life	12 years	12 years
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,744	$ 2,075