Note 12 - Mezzanine Equity and Stockholders' Deficiency - Redeemable Noncontrolling Interest (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Beginning balance			$ 3,061
Net loss attributable to and accretion of redeemable noncontrolling interest	$ (517)	$ 0	(1,413)	$ 0
Ending balance	4,631		4,631
AvePoint EduTech PTE. LTD. [Member]
Beginning balance			3,061
Issuance of redeemable noncontrolling interest in EduTech			238
Net loss attributable to and accretion of redeemable noncontrolling interest			(731)
Other comprehensive income (loss) attributable to redeemable noncontrolling interest			(81)
Adjustment to present redemption value as of September 30, 2021			2,144
Ending balance	$ 4,631		$ 4,631

Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest.

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Amount of Net Income (Loss) attributable to redeemable noncontrolling interest.

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Amount after tax of other comprehensive income (loss) attributable to noncontrolling interests.

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As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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