1,087,956

$ 664,299

128,807,340

127,621,807

The first notification letter advised the Company that, based upon the closing bid price of the Company’s common stock for the 30 consecutive business days from April 15, 2026 to June 1, 2026, the Company no longer satisfies the $1.00 minimum bid price requirement for continued listing on The Nasdaq Capital Market, as set forth in Nasdaq Listing Rule 5550(a)(2). The second notification letter advised the Company that, based upon Nasdaq’s review of the Company’s Market Value of Listed Securities (“MVLS”) for the 30 consecutive business days from April 20, 2026 to June 1, 2026, the Company no longer satisfies the $35 million minimum MVLS requirement for continued listing on The Nasdaq Capital Market, as set forth in Nasdaq Listing Rule 5550(b)(2). The notification letter also noted that the Company does not currently meet the alternative continued listing standards under Nasdaq Listing Rules 5550(b)(1) and 5550(b)(3), relating to minimum stockholders’ equity and net income from continuing operations, respectively. The Nasdaq notifications have no immediate effect on the listing or trading of the Company’s common stock, which will continue to trade on The Nasdaq Capital Market under the symbol “REFR.” In accordance with Nasdaq Listing Rules 5810(c)(3)(A) and 5810(c)(3)(C), the Company has been provided 180 calendar days, or until November 30, 2026, to regain compliance with the minimum bid price requirement and the MVLS requirement, respectively. To regain compliance with the minimum bid price requirement, the closing bid price of the Company’s common stock must be at least $1.00 per share for a minimum of 10 consecutive business days during the compliance period, unless Nasdaq exercises its discretion to require a longer period as permitted under its rules. To regain compliance with the MVLS requirement, the Company’s MVLS must close at $35 million or more for a minimum of 10 consecutive business days during the compliance period, unless Nasdaq exercises its discretion to require a longer period as permitted under its rules.

Warrant exercises

$ 1.50

$ 1.30

$ 1.20

$ 1.10

Equity, Attributable to Parent

$ 3,487

$ 3,365

Share price

$ 1.00

Business (Details Narrative) - USD ($)					6 Months Ended
Business (Details Narrative) - USD ($)	Feb. 28, 2031	Jun. 02, 2026	Feb. 18, 2026	Feb. 13, 2026	Jun. 30, 2026	Feb. 28, 2029	Feb. 29, 2028	Mar. 01, 2027	Feb. 28, 2027	Mar. 31, 2026	Dec. 31, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024
[custom:WorkingCapital-0]					$ 1,000,000.0
Cash and Cash Equivalent					1,087,956						$ 664,299
Equity, Attributable to Parent					1,123,093					$ 1,783,261	933,626	$ 1,798,026	$ 2,426,648	$ 2,604,335
Retained Earnings (Accumulated Deficit)					128,807,340						127,621,807
Sale of common stock					1,375,000
Nature of business description		The first notification letter advised the Company that, based upon the closing bid price of the Company’s common stock for the 30 consecutive business days from April 15, 2026 to June 1, 2026, the Company no longer satisfies the $1.00 minimum bid price requirement for continued listing on The Nasdaq Capital Market, as set forth in Nasdaq Listing Rule 5550(a)(2). The second notification letter advised the Company that, based upon Nasdaq’s review of the Company’s Market Value of Listed Securities (“MVLS”) for the 30 consecutive business days from April 20, 2026 to June 1, 2026, the Company no longer satisfies the $35 million minimum MVLS requirement for continued listing on The Nasdaq Capital Market, as set forth in Nasdaq Listing Rule 5550(b)(2). The notification letter also noted that the Company does not currently meet the alternative continued listing standards under Nasdaq Listing Rules 5550(b)(1) and 5550(b)(3), relating to minimum stockholders’ equity and net income from continuing operations, respectively. The Nasdaq notifications have no immediate effect on the listing or trading of the Company’s common stock, which will continue to trade on The Nasdaq Capital Market under the symbol “REFR.” In accordance with Nasdaq Listing Rules 5810(c)(3)(A) and 5810(c)(3)(C), the Company has been provided 180 calendar days, or until November 30, 2026, to regain compliance with the minimum bid price requirement and the MVLS requirement, respectively. To regain compliance with the minimum bid price requirement, the closing bid price of the Company’s common stock must be at least $1.00 per share for a minimum of 10 consecutive business days during the compliance period, unless Nasdaq exercises its discretion to require a longer period as permitted under its rules. To regain compliance with the MVLS requirement, the Company’s MVLS must close at $35 million or more for a minimum of 10 consecutive business days during the compliance period, unless Nasdaq exercises its discretion to require a longer period as permitted under its rules.
Forecast [Member]
Warrant exercises						$ 1.50	$ 1.30	$ 1.20	$ 1.10
Common Stock [Member]
Equity, Attributable to Parent					$ 3,487					$ 3,487	$ 3,365	$ 3,365	$ 3,365	$ 3,365
Stock issued during period shares new issues			1,100,000	1,100,000	1,219,565
Share price			$ 1.00
Sale of common stock					$ 122
Common Stock [Member] \| Forecast [Member]
Sale of common stock	$ 1,100,000