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STOCK COMPENSATION - Summary of Restricted Stock Activity (Details) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($) $ / shares shares
Restricted Shares
Weighted-average years expected to be recognized over (in years)	1 year 7 months 6 days
Restricted Stock
Restricted Shares
Beginning balance (in shares) | shares	795,587
Grants (in shares) | shares	220,658
Vested (in shares) | shares	(552,880)
Cancellations (in shares) | shares	(400)
Ending balance (in shares) | shares	462,965
Total unrecognized compensation expense remaining (in thousands) | $	$ 4,272
Weighted-average years expected to be recognized over (in years)	1 year 8 months 12 days
Weighted- average grant date fair value
Beginning balance (usd per share) | $ / shares	$ 7.54
Grants (usd per share) | $ / shares	14.27
Vested (usd per share) | $ / shares	7.07
Cancellations (usd per share) | $ / shares	11.42
Ending balance (usd per share) | $ / shares	$ 11.31

X

- Definition

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

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made 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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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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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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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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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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