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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

X
- Definition The number of warrants or rights exercised or converted during period. + References No definition available. + Details
Name: | liqt_ClassOfWarrantOrRightExercisedOrConvertedDuringPeriod
Namespace Prefix: | liqt_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of warrants or rights issued during period. + References No definition available. + Details
Name: | liqt_ClassOfWarrantOrRightIssuedDuringPeriod
Namespace Prefix: | liqt_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of warrants or rights outstanding. + References No definition available. + Details
Name: | us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant