Intangible assets Schedule of intangibles (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 15,759	$ 15,204
Finite-Lived Intangible Assets, Accumulated Amortization	(3,424)	(2,092)
Finite-Lived Intangible Assets, Net	12,335	13,112
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	8,422	8,090
Finite-Lived Intangible Assets, Accumulated Amortization	(2,020)	(1,447)
Finite-Lived Intangible Assets, Net	6,402	6,643
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	7,337	7,114
Finite-Lived Intangible Assets, Accumulated Amortization	(1,404)	(645)
Finite-Lived Intangible Assets, Net	$ 5,933	$ 6,469