Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2022

Share-Based Payment Arrangement [Abstract]

Schedule of stock option activity

The following table summarizes stock option activity for the years ended December 31, 2022 and 2021:

	Options Outstanding	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (Years)	Aggregated Intrinsic Value
Outstanding at December 31, 2020	25,087,416	$	1.29	7.92	$	18,554,241
Granted	9,562,000	2.49		—	—
Exercised	(5,589,084)	1.50		—	7,731,175
Expired	(2,966,509)	1.69		—	—
Forfeited	(4,250,042)	1.10		—	—
Outstanding at December 31, 2021	21,843,781	1.74		8.06	4,596,393
Granted	13,033,750	0.30		—	—
Exercised	(72,334)	0.53		—	—
Expired	(1,038,796)	2.08		—	—
Forfeited	(526,037)	1.75		—	—
Outstanding at December 31, 2022	33,240,364	1.17		7.8	—
Vested as of December 31, 2022	18,756,614	1.57		6.45	—
Expected to vest as of December 31, 2022	14,483,750	0.65		9.53	—

Schedule of assumptions used to estimate the fair values of the share options

For the options with performance and service conditions, the assumptions used to estimate the fair values of the stock options granted in the year ended December 31, 2022, 2021 and 2020 are as follows:

	Year ended
	December 31, 2022		December 31, 2021		December 31, 2020
Expected term (in years)	0.5 - 5.55		4.79 - 7.17		5.15 - 5.52
Expected volatility	96% - 127%		112% - 130%		101% - 122%
Expected dividend yield	—	%	—	%	—	%
Risk free interest rate	1.69% - 4.58%		0.51% - 1.29%		0.39% - 0.44%

For the options with market conditions, the assumptions used to estimate the fair values of the stock options granted in the year ended December 31, 2021 as follows:

	For the Year Ended December 31, 2021
Expected term (in years)	1.88
Expected volatility	106.92	%
Expected dividend yield	—	%
Risk free interest rate	1.31	%

Schedule of warrants outstanding and exercisable

A summary of the warrants is as follows:

	2022	2021
Warrants Outstanding	Number of Warrants Outstanding and Exercisable	Number of Warrants Outstanding and Exercisable	Exercise Price		Expiration Date
Service providers	—	200,000	$	5.00	July 1, 2022
Service providers	—	700,000	2.50		February 28, 2022-October 1, 2022
Service providers	—	100,000	7.50		January 1, 2023
Service providers	—	100,000	9.00		January 1, 2023
Acuitas Capital, LLC	5,000,000	—	0.29
Acuitas Capital, LLC	5,000,000	—	0.29
	10,000,000	1,100,000

Schedule of unvested restricted shares

A sumary of the unvested restricted shares is as follows:

	Shares	Weighted-average fair value
Non-vested restricted shares outstanding at December 31, 2020	—	$	—
Granted	5,025,000	2.46
Forfeited	—	—
Vested	(5,025,000)	2.46
Non-vested restricted shares outstanding at December 31, 2021	—
Granted	8,800,000	0.22
Forfeited	—	—
Vested	(5,100,000)	0.25
Non-vested restricted shares outstanding at December 31, 2022	3,700,000	0.19