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Shareholders' Equity (Narrative) (Details) (USD $) | 0 Months Ended | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jun. 13, 2013 | Oct. 03, 2012 | Aug. 28, 2012 | Jul. 30, 2012 | Jun. 09, 2011 | Feb. 28, 2015 | May 31, 2014 | Mar. 31, 2014 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares of common stock reserved for issuance |  |  |  |  |  |  |  |  |  |  |  |  | 750,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized |  |
Awards available for issuance |  |  |  |  |  |  |  |  |  |  |  |  | 377,942 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant |  |
Additional awards authorized for issuance | 1,000,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized |  |  |  |  |  |  | 750,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized |  |  |  |  |  |  |
Number of options exercised |  |  |  |  |  |  |  |  |  |  |  |  | 64,800 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised | 179,983 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised |
Proceeds from exercise of options |  |  |  |  |  |  |  |  |  |  |  |  | $ 304,788 us-gaap_ProceedsFromStockOptionsExercised | $ 822,969 us-gaap_ProceedsFromStockOptionsExercised |
Weighted-average exercise price per share, exercisable |  |  |  |  |  |  |  |  | $ 5.00 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice |  |  |  |  |  |
Proceeds from exercise of warrants |  |  |  |  |  |  |  |  |  |  |  |  | 222,500 us-gaap_ProceedsFromWarrantExercises | 478,299 us-gaap_ProceedsFromWarrantExercises |
Stock and option compensation |  |  |  |  |  |  |  |  |  |  | 616,000 us-gaap_AllocatedShareBasedCompensationExpense | 2,305,000 us-gaap_AllocatedShareBasedCompensationExpense | 1,010,489 us-gaap_AllocatedShareBasedCompensationExpense | 2,545,060 us-gaap_AllocatedShareBasedCompensationExpense | 873,888 us-gaap_AllocatedShareBasedCompensationExpense
Proceeds from sale of common stock |  | 5,275,750 us-gaap_ProceedsFromIssuanceOfCommonStock | [1] | 5,229,201 us-gaap_ProceedsFromIssuanceOfCommonStock | [2] | 1,745,549 us-gaap_ProceedsFromIssuanceOfCommonStock | [3] |  |  | 3,278,250 us-gaap_ProceedsFromIssuanceOfCommonStock |  |  |  |  | 12,250,500 us-gaap_ProceedsFromIssuanceOfCommonStock
Shares issued |  | 1,250,000 us-gaap_StockIssuedDuringPeriodSharesNewIssues |  | 1,900,000 us-gaap_StockIssuedDuringPeriodSharesNewIssues |  | 589,227 us-gaap_StockIssuedDuringPeriodSharesNewIssues |  |  | 50,181 us-gaap_StockIssuedDuringPeriodSharesNewIssues | 750,000 us-gaap_StockIssuedDuringPeriodSharesNewIssues |  |  |  |  | 3,739,227 us-gaap_StockIssuedDuringPeriodSharesNewIssues
Issuance of Stock and Warrants for Services or Claims |  |  |  |  |  |  |  |  |  |  |  |  | 32,428 us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims | 369,844 us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims | 110,649 us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims
Consultant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Goods and Nonemployee Services Transaction, Quantity of Securities Issued |  |  |  |  |  |  |  |  |  |  |  |  | 24,000 us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionQuantityOfSecuritiesIssued / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = refr_ConsultantMember |  | 60,000 us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionQuantityOfSecuritiesIssued / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = refr_ConsultantMember
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of options exercised |  |  |  |  |  |  |  |  |  |  |  |  | 64,800 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 179,983 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
Shares issued |  |  |  |  |  |  |  |  |  |  |  |  | 750,000 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  | 3,739,227 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted common stock granted |  |  |  |  |  |  |  |  |  |  |  |  |  | 282,900 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember | 363,200 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember
Market value per share on the date of grant |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3.70 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember | $ 3.38 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember
Stock and option compensation |  |  |  |  |  |  |  |  |  |  |  |  | 526,575 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember | 2,545,060 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember | 873,888 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember
Unvested shares |  |  |  |  |  |  |  |  |  |  |  |  | 62,667 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember | 611,692 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember | 218,733 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember
Unamortized compensation costs |  |  |  |  |  |  |  |  |  |  |  |  | 231,867 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |  |
Unamortized compensation costs, period for recognition |  |  |  |  |  |  |  |  |  |  |  |  | 12 months |  |
Restricted Stock [Member] | Vesting Ratably [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Award vesting period |  |  |  |  |  |  |  |  |  |  |  |  |  | 36 months | 36 months
Restricted common stock granted |  |  |  |  |  |  |  |  |  |  |  |  |  | 188,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_VestingAxis = refr_VestingRatablyMember | 261,600 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_VestingAxis = refr_VestingRatablyMember
Restricted Stock [Member] | Director [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted common stock granted |  |  |  |  |  |  |  |  |  |  |  |  |  | 91,500 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_TitleOfIndividualAxis = us-gaap_DirectorMember | 96,500 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_TitleOfIndividualAxis = us-gaap_DirectorMember
Restricted Stock [Member] | Employees [Member] | Vesting Immediately [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted common stock granted |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,400 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_TitleOfIndividualAxis = refr_EmployeesMember / us-gaap_VestingAxis = refr_VestingImmediatelyMember | 5,100 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_TitleOfIndividualAxis = refr_EmployeesMember / us-gaap_VestingAxis = refr_VestingImmediatelyMember
Employee Stock Option [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of options granted |  |  |  |  |  |  |  |  |  |  |  |  | 209,750 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember | 499,700 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |
Options granted, weighted-average exercise price per share |  |  |  |  |  |  |  |  |  |  |  |  | $ 5.19 us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember | $ 5.26 us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |
Number of options exercised |  |  |  |  |  |  |  |  |  |  |  |  | 14,800 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember | 72,500 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |
Proceeds from exercise of options |  |  |  |  |  |  |  |  |  |  |  |  | 82,288 us-gaap_ProceedsFromStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember | 322,475 us-gaap_ProceedsFromStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |
Stock and option compensation |  |  |  |  |  |  |  |  |  |  |  |  | $ 483,915 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember | $ 1,431,620 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |
Non-Employee Stock Options and Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of options granted |  |  |  |  |  |  |  |  |  |  |  |  | 24,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_AwardTypeAxis = refr_NonEmployeeStockOptionsAndWarrantsMember |  | 807,846 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_AwardTypeAxis = refr_NonEmployeeStockOptionsAndWarrantsMember
Options granted, weighted-average exercise price per share |  |  |  |  |  |  |  |  |  |  |  |  | $ 6.58 us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = refr_NonEmployeeStockOptionsAndWarrantsMember |  | $ 5.12 us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = refr_NonEmployeeStockOptionsAndWarrantsMember
Number of options exercised |  |  |  |  |  |  |  |  |  |  |  |  | 50,000 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_AwardTypeAxis = refr_NonEmployeeStockOptionsAndWarrantsMember | 107,483 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_AwardTypeAxis = refr_NonEmployeeStockOptionsAndWarrantsMember |
Number exercisable |  |  |  |  |  |  |  |  |  |  |  |  | 1,349,620 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_AwardTypeAxis = refr_NonEmployeeStockOptionsAndWarrantsMember |  |
Weighted-average exercise price per share, exercisable |  |  |  |  |  |  |  |  |  |  |  |  | $ 5.64 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = refr_NonEmployeeStockOptionsAndWarrantsMember |  |
Minimum [Member] | Consultant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Award vesting period |  |  |  |  |  |  |  |  |  |  |  |  | 24 months |  |
Minimum [Member] | Non-Employee Stock Options and Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option expiration period |  |  |  |  |  |  |  |  |  |  |  |  | 5 years |  |
Maximum [Member] | Consultant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Award vesting period |  |  |  |  |  |  |  |  |  |  |  |  | 59 months |  |
Maximum [Member] | Non-Employee Stock Options and Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option expiration period |  |  |  |  |  |  |  |  |  |  |  |  | 10 years |  |
July and August Investor Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of warrants |  |  |  |  |  |  |  |  |  |  |  |  | 5 years |  |
Exercise price of warrants |  |  |  |  |  |  |  |  |  |  |  |  | $ 4.45 us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = refr_JulyAndAugustInvestorWarrantsMember |  |
Exercise price of warrants, as a percentage of offering price |  |  |  |  |  |  |  |  |  |  |  |  | 150.00%refr_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRightsAsPercentageOfOfferingPrice / us-gaap_ClassOfWarrantOrRightAxis = refr_JulyAndAugustInvestorWarrantsMember |  |
October Investor Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of warrants |  |  |  |  |  |  |  |  |  |  |  |  | 5 years |  |
Exercise price of warrants |  |  |  |  |  |  |  |  |  |  |  |  | $ 6.73 us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = refr_OctoberInvestorWarrantsMember |  |
Exercise price of warrants, as a percentage of offering price |  |  |  |  |  |  |  |  |  |  |  |  | 150.00%refr_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRightsAsPercentageOfOfferingPrice / us-gaap_ClassOfWarrantOrRightAxis = refr_OctoberInvestorWarrantsMember |  |
[1] | Net of fees of $336,750
[2] | Net of fees of $413,719
[3] | Net of fees of $4,455

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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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