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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
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Business Acquisition [Line Items] |
Shares of the combined company to be owned by OncoGenex equity holders | shares | 273,671
Multiplied by the price per share of OncoGenex stock | $ / shares | $ 46.20
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

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