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Note 9 - Stockholders' Equity - Warrants (Details) - shares		3 Months Ended
	Aug. 17, 2021	Mar. 31, 2022	Mar. 31, 2021
Balance, Warrants (in shares)		1,015,000	515,000
Common stock exchanged to prefunded warrant (in shares)	500,000	0	0
Exercises and conversions (in shares)		0	0
Balance, Warrants (in shares)		1,015,000	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

Number of warrants issued in exchanged of common stock during the period.

+ References

No definition available.

+ Details

Name:	liqt_ClassOfWarrantOrRightIssuedByExchangeShares
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