Note 2 - Summary of Significant Accounting Policies 1 (Details Textual) $ in Thousands		3 Months Ended		12 Months Ended
		Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)	Jan. 01, 2022 USD ($)	Feb. 11, 2021	Dec. 31, 2020 USD ($)
Operating Lease, Right-of-Use Asset		$ 13,409		$ 0
Operating Lease, Liability, Total	[1]	13,771
Operating Lease, Liability, Current		3,600
Amortization of Intangible Assets		$ 100
Number of Reporting Units		1
Goodwill, Impairment Loss		$ 0
Foreign Currency Transaction Gain (Loss), before Tax, Total		(200)	$ 100
Cash		8,100		9,300
Capitalized Contract Cost, Amortization		3,000	2,200
Capitalized Contract Cost, Net, Total		39,090		38,926			$ 31,943
Revenue from Contract with Customer, Excluding Assessed Tax		50,291	38,800
Contract with Customer, Liability, Total		83,963		$ 82,332			$ 74,688
Contract with Customer, Liability, Revenue Recognized		$ 30,200	26,700
AvePoint EduTech PTE. LTD. [Member]
Noncontrolling Interest, Ownership Percentage by Parent		76.09%		76.09%		76.09%	77.78%
AvePoint EduTech PTE. LTD. [Member] | AEPL PTE. LTD. [Member]
Investment Owned, at Cost		$ 8,300
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		23.91%		23.91%		23.91%	22.22%
AvePoint EduTech PTE. LTD. [Member] | I-Access Solutions Pte. Ltd. [Member]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		2.98%
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member]
Open Tax Year				2017 2018 2019 2020
State and Local Jurisdiction [Member]
Open Tax Year				2017 2018 2019 2020
Foreign Tax Authority [Member]
Open Tax Year				2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021
Termed License and Support [Member]
Revenue from Contract with Customer, Excluding Assessed Tax		$ 10,202	8,727
Revenue, Remaining Performance Obligation, Amount		144,800		$ 147,100
SaaS [Member
Revenue from Contract with Customer, Excluding Assessed Tax		26,553	18,259
Revenue, Remaining Performance Obligation, Amount		194,400		$ 201,100
Transferred at Point in Time [Member] | Termed License and Support [Member]
Revenue from Contract with Customer, Excluding Assessed Tax		$ 6,200	$ 6,100
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)		1 year
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)		10 years
Accounting Standards Update 2016-02 [Member]
Operating Lease, Right-of-Use Asset					$ 13,900
Deferred Rent Credit					600
Operating Lease, Liability, Total					14,500
Operating Lease, Liability, Current					$ 3,600

[1] Includes the current portion of operating lease liabilities of $3.6 million, which is reflected in accrued expenses and other liabilities in the condensed consolidated balance sheets.