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Related Party (Details Narrative)	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Jun. 04, 2023	Mar. 31, 2023
Gauzy Ltd [Member]
Subsidiary, ownership percentage	100.00%
Gauzy Ltd [Member] | Minimum [Member]
Royalty percentage			10.00%
Gauzy Ltd [Member] | Maximum [Member]
Royalty percentage			15.00%
Gauzy and Vision Systems [Member]
Total fee income percentage	21.00%			25.00%
Related party percentage	3.00%	8.00%

X

- Definition

Fee income percentage.

+ References

No definition available.

+ Details

Name:	REFR_FeeIncomePercentage
Namespace Prefix:	REFR_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Royalty percentage.

+ References

No definition available.

+ Details

Name:	REFR_RoyaltyPercentage
Namespace Prefix:	REFR_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties.

+ References

No definition available.

+ Details

Name:	us-gaap_RelatedPartyTransactionRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_OwnershipAxis=REFR_GauzyLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=REFR_GauzyLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=REFR_GauzyAndVisionSystemsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: