10. SHARE-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2022

Disclosure Of Compensation Related Costs Sharebased Payments Abstract

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The following table summarizes the weighted-average valuation assumptions and weighted-average grant date fair value of options granted during the periods shown below:

	Year Ended December 31,
Assumptions (weighted-average)	2022		2021			2020
Volatility		—		120	%		111	%
Expected term (in years)		—		4.0			4.0
Risk-free rate		—		0.9	%		0.3	%
Expected dividends		—		0.0	%		0.0	%
Pre-vest forfeiture rate		—		8.5	%		8.5	%
Grant date fair value of options granted	$	—	$	11.72		$	1.20

Schedule of Valuation Assumptions for Stock Options

The following table summarizes activity and positions with respect to options for the periods shown below (in thousands):

						Weighted-average
						remaining		Aggregate
				Weighted-average		contractual		intrinsic
Options	Shares			exercise price		term (in years)		value
Outstanding as of December 31, 2019		5,104			1.66		7.4	$	122
Granted		68			1.60
Exercised		(693	)		1.44
Forfeited or expired		(1,198	)		2.20
Outstanding as of December 31, 2020		3,281			1.51		6.6	$	12,784
Granted		8			14.04
Exercised		(1,519	)		1.75
Forfeited or expired		(237	)		1.23
Outstanding as of December 31, 2021		1,533			1.37		5.6	$	5,645
Granted		—			—
Exercised		(525	)		1.38
Forfeited or expired		(63	)		3.00
Outstanding as of December 31, 2022		945		$	1.26		5.7	$	1,137
Vested and expected to vest as of December 31, 2022		945		$	1.26		5.7	$	1,136
Exercisable as of December 31, 2022		941		$	1.26		5.7	$	1,129

Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

The following table summarizes activity and positions with respect to RSUs and PSUs for the three years ended December 31, 2022 (in thousands):

				Weighted-average
	Shares			price
Unvested as of December 31, 2019		1,215			0.40
Granted		1,462			1.08
Vested		(219	)		0.88
Forfeited		(475	)		0.77
Unvested as of December 31, 2020		1,983			0.76
Granted		4,179			12.92
Vested		(2,380	)		3.11
Forfeited		(1,157	)		11.97
Unvested as of December 31, 2021		2,625			13.05
Granted		9,180			2.46
Vested		(1,391	)		9.16
Forfeited		(1,548	)		6.42
Unvested as of December 31, 2022		8,866		$	3.85