Annual report pursuant to Section 13 and 15(d)

Income taxes, Valuation Allowance (Details)

v3.20.1
Income taxes, Valuation Allowance (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Valuation Allowance [Abstract]    
Valuation allowance, at beginning of year $ 0  
Increase in valuation allowance 7,892  
Halo Acquisition 21  
Valuation allowance, at end of year 7,913  
Accrued interest and penalties related to uncertain tax positions $ 0 $ 0