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

Note 13 - Income Taxes (Details Textual)

v3.19.1

Note 13 - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	26.50%	26.50%
Operating Loss Carryforwards, Total	$ 72,000
Research Tax Credit Carryforward [Member]
Tax Credit Carryforward, Amount	18,950
Research Tax Credit Carryforward [Member] \| Foreign Tax Authority [Member] \| Canada Revenue Agency [Member]
Tax Credit Carryforward, Amount	393
Investment Tax Credit Carryforward [Member] \| Foreign Tax Authority [Member] \| Canada Revenue Agency [Member]
Tax Credit Carryforward, Amount	$ 3,950

- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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