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v3.22.0.1

Rights Plan (Details Narrative) | 12 Months Ended
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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

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- 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

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- 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

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- 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

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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 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

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- 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

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- 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_
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Balance Type: | na
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