Consolidated Balance Sheets (Unaudited) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 3,400,842	$ 1,737,847
Royalties receivable, net of reserves of $1,051,424 in 2018 and 2017	709,811	597,441
Prepaid expenses and other current assets	96,790	29,697
Total current assets	4,207,443	2,364,985
Fixed assets, net	358,456	482,561
Deposits and other assets	33,567	33,567
Total assets	4,599,466	2,881,113
Current liabilities:
Accounts payable	56,602	58,090
Accrued expenses and other	263,420	254,833
Deferred revenue	38,966	824
Total current liabilities	358,988	313,747
Warrant liability	510,001
Shareholders' equity:
Common stock, par value $0.0001 per share; authorized 100,000,000 shares, issued and outstanding 27,662,211 in 2018 and 24,043,846 in 2017	2,766	2,404
Additional paid-in capital	114,784,477	111,627,789
Accumulated deficit	(111,056,766)	(109,062,827)
Total shareholders' equity	3,730,477	2,567,366
Total liabilities and shareholders' equity	$ 4,599,466	$ 2,881,113

Warrant liability.

No definition available.

Name:	REFR_WarrantLiability
Namespace Prefix:	REFR_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).