Document And Entity Information |
12 Months Ended |
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Dec. 31, 2017
shares
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| Document Information [Line Items] | |
| Entity Registrant Name | Aptose Biosciences Inc. |
| Entity Central Index Key | 0000882361 |
| Trading Symbol | apto |
| Current Fiscal Year End Date | --12-31 |
| Entity Filer Category | Non-accelerated Filer |
| Entity Current Reporting Status | Yes |
| Entity Voluntary Filers | No |
| Entity Well-known Seasoned Issuer | No |
| Entity Common Stock, Shares Outstanding (in shares) | 27,502,053 |
| Document Type | 40-F |
| Document Period End Date | Dec. 31, 2017 |
| Document Fiscal Year Focus | 2017 |
| Document Fiscal Period Focus | FY |
| Amendment Flag | false |
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- Definition Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument. No definition available.
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- Definition Indicate "Yes" or "No" whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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- Definition Indicate whether the registrant is one of the following: (1) Large Accelerated Filer, (2) Accelerated Filer, (3) Non-accelerated Filer, (4) Smaller Reporting Company (Non-accelerated) or (5) Smaller Reporting Accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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- Definition Indicate "Yes" or "No" if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A. No definition available.
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