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Document And Entity Information
May 12, 2022
Document Information [Line Items]  
Entity, Registrant Name LiqTech International, Inc.
Document, Type 8-K
Document, Period End Date May 12, 2022
Entity, Incorporation, State or Country Code NV
Entity, File Number 001-36210
Entity, Tax Identification Number 20-1431677
Entity, Address, Address Line One Industriparken 22C
Entity, Address, Postal Zip Code 2750
Entity, Address, City or Town Ballerup
Entity, Address, Country DK
City Area Code 45
Local Phone Number 3131 5941
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock
Trading Symbol LIQT
Security Exchange Name NASDAQ
Entity, Emerging Growth Company false
Amendment Flag false
Entity, Central Index Key 0001307579