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Significant accounting policies (Details 2) (Poniard Pharmaceuticals Inc.)
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12 Months Ended |
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Dec. 31, 2014
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Poniard Pharmaceuticals Inc.
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| Disclosure of warrant | |
| Warrant term from the date of issuance | 3 years |
| Number of trading days preceding the issuance of the warrant during which the exercise price of the warrant is equal to the average closing price of common stock | 5 days |