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License and Other Agreements (Details)
 12 Months Ended
Dec. 31, 2014
Minimum [Member]  
Percentage Of Royalty Revenue On Net Sales 5.00%refr_PercentageOfRoyaltyRevenueOnNetSales
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Maximum [Member]  
Percentage Of Royalty Revenue On Net Sales 15.00%refr_PercentageOfRoyaltyRevenueOnNetSales
/ us-gaap_RangeAxis
= us-gaap_MaximumMember