Annual report pursuant to Section 13 and 15(d)

Income Taxes - Summary of Significant Components of Deferred Tax Assets and Liabilities (Detail)

v3.19.1
Income Taxes - Summary of Significant Components of Deferred Tax Assets and Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Deferred tax assets      
Share-based compensation $ 27 $ 3 $ 1
Depreciation (49)    
Depreciation   6  
Net operating loss carryforwards 13,648 5,409 1,706
163(j) interest expense limitation 115    
Other 665 239 1
Valuation allowance $ (14,406) $ (5,657) $ (1,708)