Quarterly report pursuant to Section 13 or 15(d)

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

v3.8.0.1
Commitments and Contingencies - Summary of Future Minimum Annual Lease Payments (Detail)
$ in Thousands
Mar. 31, 2018
USD ($)
Seattle Office Operating Lease [Member]  
Operating Leased Assets [Line Items]  
2018 $ 105
2019 144
2020 148
2021 25
Total 422
Vancouver, Canada [Member]  
Operating Leased Assets [Line Items]  
2018 48
Total $ 48