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SHARE-BASED COMPENSATION - Restricted stock units (Details) - Restricted stock units $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($) $ / shares shares
Number of units
Nonvested at the beginning | shares	35,000
Granted | shares	515,000
Vested | shares	(158,000)
Nonvested at the end | shares	392,000
Weighted average grant date fair value
Nonvested at the beginning (in dollars per share) | $ / shares	$ 14.01
Granted (in dollars per share) | $ / shares	11.80
Vested (in dollars per share) | $ / shares	24.33
Nonvested at the end (in dollars per share) | $ / shares	$ 6.93
Unrecognized compensation expense | $	$ 1,943
Unrecognized compensation expense, recognition period	1 year 9 months 18 days

X

- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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