Condensed Consolidated Balance Sheets - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 206,524	$ 4,772,705
Marketable securities	2,778,088
Royalty receivables, net of reserves of $972,202 in 2021 and $972,202 in 2020	1,352,971	598,292
Prepaid expenses and other current assets	158,695	56,512
Total current assets	4,496,278	5,427,509
Fixed assets, net	100,324	121,772
Operating lease ROU assets	506,479	616,442
Deposits and other assets	33,567	33,567
Total assets	5,136,648	6,199,290
Current liabilities:
Current portion of operating lease liability	178,070	166,377
Accounts payable	33,566	33,410
Accrued expenses and other	51,082	26,279
Deferred revenue	13,304
Total current liabilities	276,022	226,066
Operating lease liability, net of current portion	510,987	646,219
Total liabilities	787,009	872,285
Shareholders’ equity:
Common stock, par value $0.0001 per share; authorized 100,000,000 shares, issued and outstanding 31,650,396 in 2021 and 31,575,786 in 2020	3,165	3,158
Additional paid-in capital	123,250,878	123,164,623
Accumulated deficit	(118,904,404)	(117,840,776)
Total shareholders’ equity	4,349,639	5,327,005
Total liabilities and shareholders’ equity	$ 5,136,648	$ 6,199,290

Royalties receivable net current.

No definition available.

Name:	REFR_RoyaltiesReceivableNetCurrent
Namespace Prefix:	REFR_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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).