Quarterly report pursuant to Section 13 or 15(d)

Commitments - Schedule of Undiscounted Cash Flows for Operating Lease Liabilities Recorded in Condensed Balance Sheet (Detail)

v3.19.3
Commitments - Schedule of Undiscounted Cash Flows for Operating Lease Liabilities Recorded in Condensed Balance Sheet (Detail) - USD ($)
$ in Thousands
Sep. 30, 2019
Jan. 01, 2019
Commitments And Contingencies Disclosure [Abstract]    
Remaining in 2019 $ 111  
2020 351  
Total lease payments 462  
Present value adjustment (23)  
Lease liabilities $ 439 $ 700