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Rights Plan (Details Narrative)	12 Months Ended
	Dec. 31, 2021 USD ($) $ / shares
Rights Plan
Percentage of acquisition threshold	15.00%
Value of stock covered by each right | $	$ 80
Exercise price of rights	$ 40
Threshold for change in control	50.00%
Rights plan expire date	Feb. 11, 2023
Redemption price	$ 0.0001

X

- Definition

Class Of Warrant Or Right, Amount Of Stock Covered.

+ References

No definition available.

+ Details

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

X

- Definition

Class Of Warrant Or Right, Control Threshold.

+ References

No definition available.

+ Details

Name:	REFR_ClassOfWarrantOrRightControlThreshold
Namespace Prefix:	REFR_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Class Of Warrant Or Right, Redemption Price.

+ References

No definition available.

+ Details

Name:	REFR_ClassOfWarrantOrRightRedemptionPrice
Namespace Prefix:	REFR_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	REFR_DisclosureRightsPlanAbstract
Namespace Prefix:	REFR_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of acquisition threshold in rights agreement.

+ References

No definition available.

+ Details

Name:	REFR_PercentageOfAcquisitionThresholdInRightsAgreement
Namespace Prefix:	REFR_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Rights plan expire date.

+ References

No definition available.

+ Details

Name:	REFR_RightsPlanExpireDate
Namespace Prefix:	REFR_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant