Quarterly report pursuant to Section 13 or 15(d)

Reverse Merger - Summary of Final Purchase Price (Detail)

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Reverse Merger - Summary of Final Purchase Price (Detail) - OncoGenex Pharmaceuticals, Inc [Member]
$ / shares in Units, $ in Thousands
Aug. 01, 2017
USD ($)
$ / shares
shares
Business Acquisition [Line Items]  
Shares of the combined company to be owned by OncoGenex equity holders | shares 2,736,709
Multiplied by the price per share of OncoGenex stock | $ / shares $ 4.62
Value of shares of the combined company owned by OncoGenex equity holders $ 12,643
Fair value of options and warrants assumed 207
Fair value of contingent value rights assumed 200
Total purchase price $ 13,050