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Note 15 - Subsequent Events	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Subsequent Events [Text Block]	NOTE 15 - SUBSEQUENT EVENTS On January 3, 2022, the Company issued 18,641 common shares to settle RSUs. The RSUs were valued at $140,000 for services provided by the Board of Directors in 2021. The Company recognized the stock-based compensation of the award over the requisite service period. On January 3, 2022, the Company issued 48,341 common shares to settle RSUs. The RSUs were valued at $283,605 for services provided by management in 2021. The Company is recognizing the stock-based compensation of the award over the requisite service period. On March 18, 2022, the Company announced that Sune Mathiesen, Chief Executive Officer, has taken a medical leave of absence.  Alexander J. Buehler, who is currently serving as a member of the Board of Directors, has been appointed to serve as Interim Chief Executive Officer, effective immediately.  Mr. Buehler has served as a Director of LiqTech since 2017, during which time he has also served as the Audit Committee Chairman.

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- Definition

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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