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Summary of Significant Accounting Policies (Short-term Investments) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Certificates of Deposit [Member]
Schedule of Held-to-maturity Securities [Line Items]
Value of Current Held to Maturity Investments (based on cost)	$ 3,005,079us-gaap_HeldToMaturitySecuritiesCurrent / invest_InvestmentAxis = us-gaap_CertificatesOfDepositMember	$ 5,076,930us-gaap_HeldToMaturitySecuritiesCurrent / invest_InvestmentAxis = us-gaap_CertificatesOfDepositMember
Certificate Of Deposits One [Member]
Schedule of Held-to-maturity Securities [Line Items]
Maturity Date	Aug. 27, 2015
Value of Current Held to Maturity Investments (based on cost)	1,501,554us-gaap_HeldToMaturitySecuritiesCurrent / invest_InvestmentAxis = refr_CertificateOfDepositsOneMember
Certificate Of Deposits Two [Member]
Schedule of Held-to-maturity Securities [Line Items]
Maturity Date	Oct. 17, 2014
Value of Current Held to Maturity Investments (based on cost)		2,011,967us-gaap_HeldToMaturitySecuritiesCurrent / invest_InvestmentAxis = refr_CertificateOfDepositsTwoMember
Certificate Of Deposits Six [Member]
Schedule of Held-to-maturity Securities [Line Items]
Maturity Date	Apr. 18, 2014
Value of Current Held to Maturity Investments (based on cost)		2,007,997us-gaap_HeldToMaturitySecuritiesCurrent / invest_InvestmentAxis = refr_CertificateOfDepositsSixMember
Certificate Of Deposits Three [Member]
Schedule of Held-to-maturity Securities [Line Items]
Maturity Date	Jun. 29, 2014
Value of Current Held to Maturity Investments (based on cost)		502,821us-gaap_HeldToMaturitySecuritiesCurrent / invest_InvestmentAxis = refr_CertificateOfDepositsThreeMember
Certificate Of Deposits Four [Member]
Schedule of Held-to-maturity Securities [Line Items]
Maturity Date	Apr. 06, 2014
Value of Current Held to Maturity Investments (based on cost)		301,695us-gaap_HeldToMaturitySecuritiesCurrent / invest_InvestmentAxis = refr_CertificateOfDepositsFourMember
Certificate Of Deposits Five [Member]
Schedule of Held-to-maturity Securities [Line Items]
Maturity Date	Mar. 29, 2014
Value of Current Held to Maturity Investments (based on cost)		252,450us-gaap_HeldToMaturitySecuritiesCurrent / invest_InvestmentAxis = refr_CertificateOfDepositsFiveMember
Certificate of Deposits Seven [Member]
Schedule of Held-to-maturity Securities [Line Items]
Maturity Date	Aug. 27, 2016
Value of Noncurrent Held to Maturity Investments (based on cost)	$ 1,503,525us-gaap_HeldToMaturitySecuritiesNoncurrent / invest_InvestmentAxis = refr_CertificateOfDepositsSevenMember

X

- Definition

The maturity date of the investment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 12

-Sentence Column A

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- Definition

Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity, expected to be converted to cash, sold or exchanged within one year or the normal operating cycle.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26626-111562



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26626-111562



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-Section 25

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