Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Summary of Future Minimum Annual Lease Payments (Detail)

v3.19.1
Commitments and Contingencies - Summary of Future Minimum Annual Lease Payments (Detail)
$ in Thousands
Dec. 31, 2018
USD ($)
Bothell Office Operating Lease [Member]  
Operating Leased Assets [Line Items]  
2019 $ 144
2020 148
2021 25
Total 317
Vancouver, British Columbia [Member]  
Operating Leased Assets [Line Items]  
2019 56
2020 62
2021 63
2022 63
2023 5
Total $ 249