Note 9 - Stockholders' Equity - Warrants (Details) - shares	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Balance, Warrants (in shares)	5,021,354	4,490,104
Warrants issued in connection with public offering and private placement (in shares)	0	0
Exercises and conversions (in shares)	0	0
Balance, Warrants (in shares)	5,021,354	4,490,104

The number of warrants or rights exercised or converted during period.

No definition available.

Name:	liqt_ClassOfWarrantOrRightExercisedOrConvertedDuringPeriod
Namespace Prefix:	liqt_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration