STOCKHOLDERS’ EQUITY AND STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2022

Share-Based Payment Arrangement [Abstract]

Share-Based Payment Arrangement, Option, Activity

Stock Options

A summary of the Company's stock option activity during the year ended December 31, 2022 is below:

	Shares	Weighted average exercise price
Outstanding at January 1, 2022	39,821,671	$	1.10
Granted	805,500	$	0.61
Exercised	(367,248)	$	0.22
Forfeited	(1,455,250)	$	1.00
Expired	(2,300,000)	$	2.24
Outstanding at December 31, 2022	36,504,673	$	0.82

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions

The grant date fair values of stock options granted in the year ended December 31, 2022 were estimated using the Black-Scholes valuation model with the following assumptions:

Estimated life (in years)	5.0
Weighted average volatility	93.24	%
Weighted average risk-free interest rate	3.18	%
Dividend yield	—