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SHARE-BASED PAYMENT (Tables)

12 Months Ended

Dec. 31, 2022

Share-Based Payment Arrangement [Abstract]

Schedule of Stock Option Activity Plan

The grant date fair value of the stock options was determined using the Black Scholes model with the following assumptions:

			Year Ended December 31, 2022
Exercise price			$2.42-$5.69
Expected terms (years)			6.00
Volatility			56.16%-57.84%
Risk-free interest rate			2.79%-3.02%
Expected dividend yields			0.00		%
Weighted average fair value of options granted			$1.33-$3.19

During the year ended December 31, 2021, the modification date fair value of the stock options was determined using the Binomial-Lattice Model with the following assumptions:

			After modification
Exercise price			$4.37-$6.28
Expected terms (years)			4.5-9.4
Volatility			47.6%-53.1%
Risk-free interest rate			1.26%-1.87%
Expected dividend yield			0.00%
Weighted average fair value of options modified			$4.70-$5.36

At the CRSU Modification date, the Company used the Monte Carlo valuation model in determining the fair value of the CRSUs with assumptions as follows:

						Modification Date
Expected term (years)						0.07			~			2.07
Volatility						50.93		%	~			73.89%
Risk-free interest rate						1.15		%	~			3.05%
Expected dividend yields						0.00%

The following assumptions were used for the respective periods below to calculate the fair value of common shares to be issued under TSR awards on the date of grant using the Monte Carlo pricing model:

			Year Ended December 31, 2021			Year Ended December 31, 2022
Expected term (years)			2.18-2.35			2.68
Volatility			63.06%-64.31%			59.50		%
Risk-free interest rate			0.31%-0.55%			2.72		%
Expected dividend yields			0.00		%	0.00		%

Schedule of Effective Time Fair Value of the Stock Options was Determined Using the BLM

Share options activity for the years ended December 31, 2022 was as follows:

Share options life						Number of Shares						Weighted Average Exercise Price (US$)						Weighted Average Grant Date Fair Value (US$)						Weighted Average Remaining Contractual
Outstanding as of January 1, 2022						33,503,657						6.19						4.95						7.9
Granted						2,900,000						4.81						2.69
Forfeited						(312,586)						6.28						4.87
Outstanding as of December 31, 2022						36,091,071						6.08						4.80						6.8
Expected to vest and exercisable as of December 31, 2022						36,091,071						6.08						4.80						6.8
Exercisable as of December 31, 2022						11,875,830						6.20						5.00						7.0

Schedule Non-vested Shares Activity

CRSUs' activity for the years ended December 31, 2022 was as follows:

			Number on Non-Vested Shares						Weighted Average Grant Date Fair Value per Share (US$)
Outstanding as of January 1, 2022			23,027,399						8.74		1
Vested			(9,582,930)						4.37
Outstanding as of December 31, 2022			13,444,469						2.38

The restricted stock units activity for the years ended December 31, 2022 was as follows:

			Number of Non-Vested Shares						Weighted Average Grant Date Fair Value Per Share (US$)
Outstanding as of January 1, 2022			671,441						9.08
Grant			1,239,854						4.93
Vested			(110,940)						6.26
Forfeited			(577,518)						5.30
Outstanding as of December 31, 2022			1,222,837						6.92

Schedule of Classification of Stock-based Compensation

The following summarizes the classification of share-based compensation:

			Year Ended December 31,
			2020						2021						2022
Cost of revenues			$	—					$	4,309					$	7,712
General and administrative expenses			—						59,492						67,261
Research and development expenses			—						13,064						13,987
Selling and marketing expenses			—						6,029						6,745
Construction in progress			—						237						525
Total			$	—					$	83,131					$	96,230

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Tabular disclosure of share-based payment arrangement.

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Tabular disclosure of the changes in outstanding nonvested shares.

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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