Aptose Biosciences Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Note 12 - Share Capital (Details Textual)

Note 12 - Share Capital (Details Textual) - USD ($)				12 Months Ended		13 Months Ended
Note 12 - Share Capital (Details Textual) - USD ($)	Sep. 06, 2023	May 25, 2023	Oct. 21, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Mar. 26, 2024	Aug. 10, 2023	Dec. 09, 2022	Oct. 31, 2022	Nov. 04, 2021	May 05, 2020
Hanmi Pharmaceuticals Co Ltd [Member]
Proceeds from Issuance of Common Stock	$ 3,000,000
Number of common shares held				884,152		884,152					215,703
Hanmi Pharmaceuticals Co Ltd [Member] \| Common Shares [Member]
Number of shares sold	668,449
Hanmi Pharmaceuticals Co Ltd [Member] \| Subsequent Event [Member] \| Common Shares [Member]
Percentage of investment							19.03%
Number of common shares held							2,989,414
Maximum [Member] \| Hanmi Pharmaceuticals Co Ltd [Member]
Investment for ownership interest								$ 7,000,000
Percentage of investment								19.99%
2023 Committed Equity Facility [Member]
Stock issuance program authorized shares		25,156
Stock Issuance Program, Authorized Amount		$ 25,000,000
Percentage of common shares outstanding.		19.99%
Stock Issued During Period, Shares, New Issues (in shares)				720,494
Shares Issued, Price Per Share (in dollars per share)				$ 2.91		$ 2.91
Proceeds from Issuance of Common Stock				$ 2,083,000	$ 0
2023 Committed Equity Facility [Member] \| Commitment Shares [Member]
Stock Issued During Period, Shares, New Issues (in shares)				15,094
2023 Committed Equity Facility [Member] \| Initial Commitment Shares [Member]
Stock Issued During Period, Shares, New Issues (in shares)		7,547
Stock Issuance, Percent of Cash Commission to Broker		30.00%
2023 Committed Equity Facility [Member] \| First Back-End Commitment Shares [Member]
Stock Issued During Period, Shares, New Issues (in shares)		7,547
Stock Issuance, Percent of Cash Commission to Broker		30.00%
2023 Committed Equity Facility [Member] \| Second Back-End Commitment Shares [Member]
Stock Issued During Period, Shares, New Issues (in shares)		10,062
Stock Issuance, Percent of Cash Commission to Broker		40.00%
The 2022 ATM Offering [Member]
Stock Issuance Program, Authorized Amount									$ 50,000,000
Stock Issued During Period, Shares, New Issues (in shares)				336,690	4,836
Shares Issued, Price Per Share (in dollars per share)				$ 5.62	$ 10.81	$ 5.62
Proceeds from Issuance of Common Stock, Gross				$ 1,900,000	$ 52,000	$ 1,900,000
Proceeds from Issuance of Common Stock				$ 1,809,000	$ 51,000	$ 1,900,000
Stock Issuance, Percent of Cash Commission to Broker				3.00%		3.00%
The 2022 ATM Offering [Member] \| Common Shares [Member]
Stock Issued During Period, Shares, New Issues (in shares)				337,000	5,000
The 2020 ATM Offering [Member]
Stock Issuance Program, Authorized Amount												$ 75,000,000
Stock Issued During Period, Shares, New Issues (in shares)					3,646
Shares Issued, Price Per Share (in dollars per share)					$ 14.25
Proceeds from Issuance of Common Stock, Gross			$ 89,000		$ 52,000
Proceeds from Issuance of Common Stock			$ 86,000	$ 0	$ 50,000
Stock Issuance, Percent of Cash Commission to Broker										3.00%
The 2020 ATM Offering [Member] \| Common Shares [Member]
Stock Issued During Period, Shares, New Issues (in shares)					4,000