v3.19.1
Income Taxes - Reconciliation of Income Taxes (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]    
Income tax at U.S. federal statutory rate $ (4,598) $ (2,458)
State taxes, net of federal benefit (640) (336)
Non-deductible expenses 1,190 121
Foreign income tax rate differential 279 35
Valuation allowance 4,011 2,186
Tax Reform   959
Other (21) $ (507)
Total provision for income taxes $ 221