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Other Income (Details Narrative) - USD ($)	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Other Income and Expenses [Abstract]
Refundable tax credit	$ 47,357	$ 35,152

X

- Definition

Refundable tax credit.

+ References

No definition available.

+ Details

Name:	REFR_RefundableTaxCredit
Namespace Prefix:	REFR_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_OtherIncomeAndExpensesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration