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Rights Plan (Details) (Rights Plan [Member], USD $)
 12 Months Ended
Dec. 31, 2014
Rights Plan [Member]
  
Class of Warrant or Right [Line Items]  
Percentage of acquisition threshold 15.00%refr_PercentageOfAcquisitionThresholdInRightsAgreement
/ us-gaap_ClassOfWarrantOrRightAxis
= refr_RightsPlanMember
Value of stock covered by each right $ 80refr_ClassOfWarrantOrRightAmountOfStockCovered
/ us-gaap_ClassOfWarrantOrRightAxis
= refr_RightsPlanMember
Exercise price of rights $ 40us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= refr_RightsPlanMember
Threshold for change in control 50.00%refr_ClassOfWarrantOrRightControlThreshold
/ us-gaap_ClassOfWarrantOrRightAxis
= refr_RightsPlanMember
Redemption price $ 0.0001refr_ClassOfWarrantOrRightRedemptionPrice
/ us-gaap_ClassOfWarrantOrRightAxis
= refr_RightsPlanMember