XML 39 R23.htm IDEA: XBRL DOCUMENT v3.19.3

Fair Value Measurements (Details Narrative)	12 Months Ended
	Dec. 31, 2018 USD ($)
Fair Value Disclosures [Abstract]
Fair value for warrant liabilities	$ 501,414

X

- Definition

Fair value for warrant liabilities.

+ References

No definition available.

+ Details

Name:	REFR_FairValueForWarrantLiabilities
Namespace Prefix:	REFR_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_FairValueDisclosuresAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration