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v3.22.4

Rights Plan (Details Narrative) | 12 Months Ended
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Dec. 31, 2022 $ / shares
Rights Plan |
Percentage of acquisition threshold | 15.00%
Value of stock covered by each right | $ 80
Discount price of stock | $ 40
Acquiring asset percent | 50.00%
Rights plan expire date | Feb. 11, 2033
Redemption price | $ 0.0001

X
- Definition Acquiring assets percent. + References No definition available. + Details
Name: | REFR_AcquiringAssetsPercent
Namespace Prefix: | REFR_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
Name: | REFR_DisclosureRightsPlanAbstract
Namespace Prefix: | REFR_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Discount price of stock. + References No definition available. + Details
Name: | REFR_DiscountPriceOfStock
Namespace Prefix: | REFR_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

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 Rights redemption price per share. + References No definition available. + Details
Name: | REFR_RightsRedemptionPricePerShare
Namespace Prefix: | REFR_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Per share or per unit amount of equity securities issued. + References No definition available. + Details
Name: | us-gaap_SharesIssuedPricePerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant