Annual report pursuant to Section 13 and 15(d)

Accrued liabilities (Details)

v3.20.1
Accrued liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Payables and Accruals [Abstract]    
Property and equipment related $ 1,146 $ 218
Payroll related 1,807 2,115
Use tax accrual 23 2
Professional services 879 159
Key man penalty accrual 0 2,500
Other 278 202
Accrued liabilities $ 4,133 $ 5,196