Aptose Biosciences Inc. Annual report [Section 13 and 15(d), not S-K Item 405]

Annual report [Section 13 and 15(d), not S-K Item 405]

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Note 2 - Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Note 18 - Subsequent Events (Details Textual)

v3.26.1

Note 18 - Subsequent Events (Details Textual)						1 Months Ended		12 Months Ended
Note 18 - Subsequent Events (Details Textual)	Mar. 27, 2026 USD ($)	Mar. 03, 2026 USD ($)	Feb. 23, 2026 USD ($) Advance	Jan. 22, 2026 USD ($)	Jun. 18, 2025 USD ($) Advance	Jun. 30, 2026 USD ($)	Mar. 27, 2026 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Sep. 22, 2025 USD ($) Advance
Subsequent Event [Line Items]
Proceeds from loan payable with related parties								$ 18,650,000	$ 10,000,000
Lease payment per month								$ 462,000	$ 458,000
Scenario Forecast [Member]
Subsequent Event [Line Items]
Lease term						48 months
Lease payment per month						$ 28,000
Annual escalation rate						3.00%
Hanmi Facility Agreement [Member]
Subsequent Event [Line Items]
Loan is repayable date					Jun. 18, 2025
Loan agreement amount					$ 8,500,000					$ 11,900,000
Maximum number of advances \| Advance					5					8
Maximum amount available under single advance					$ 2,500,000					$ 2,000,000
Minimum amount available under single advance										$ 500,000
Loan interest rate								6.00%
Repayment date					Aug. 31, 2028
Proceeds from loan payable with related parties								$ 8,500,000
Hanmi Facility Agreement [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Final advance received				$ 1,900,000
Total advances				$ 11,900,000
Hanmi Second Amended Facility Agreement [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Total advances							$ 4,000,000
Loan is repayable date			Feb. 23, 2026
Loan agreement amount			$ 11,100,000
Maximum number of advances \| Advance			6
Maximum amount available under single advance			$ 2,000,000
Minimum amount available under single advance			$ 500,000
Loan interest rate			6.00%
Repayment date			Aug. 31, 2028
Additional proceeds from related party debt	$ 2,000,000	$ 2,000,000

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