Quarterly report pursuant to Section 13 or 15(d)

Commitments - Schedule of Rent Expense (Detail)

v3.19.1
Commitments - Schedule of Rent Expense (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Commitments And Contingencies Disclosure [Abstract]    
Operating lease $ 95 $ 95
Short-term leases 17  
Total $ 112 $ 95