Note 10 - Stockholders' Equity - Warrants (Details) - shares	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021
Balance, Warrants (in shares)	1,015,000	515,000
Warrants issued in connection with public offering and private placement (in shares)	34,905,000	0
Exercises and conversions (in shares)	0	0
Balance, Warrants (in shares)	35,920,000	515,000

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