STOCK-BASED COMPENSATION - Restricted Stock Units and Shares (Details) - $ / shares	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Granted, Number of share of restricted stock (shares)	158,171
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested restricted stock (units), number of shares of restricted stock (unit), At the Beginning of the Year (shares)	14,676	63,436
Granted, Number of share of restricted stock (shares)	180,605	10,310
Vested, number of share of restricted stock (shares)	(30,977)	(33,188)
Forfeited, number of share of restricted stock (shares)	(12,411)	(22,384)
Unvested restricted stock (units), number of shares of restricted stock (unit), At the End of the Period (shares)	151,893	18,174
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Unvested restricted stock (units), weighted average grant date fair value, At the Beginning of the Year (usd per share)	$ 15.45	$ 15.12
Granted, weighted average grant date fair value (usd per share)	15.93	9.01
Vested, weighted average grant date fair value (usd per share)	17.15	12.83
Forfeited, weighted average grant date fair value (usd per share)	14.54	15.20
Unvested restricted stock (units), weighted average grant date fair value, At the End of the Period (usd per share)	$ 15.74	$ 15.75
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested restricted stock (units), number of shares of restricted stock (unit), At the Beginning of the Year (shares)	52,226
Vested, number of share of restricted stock (shares)	(17,408)
Unvested restricted stock (units), number of shares of restricted stock (unit), At the End of the Period (shares)	34,818
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Unvested restricted stock (units), weighted average grant date fair value, At the Beginning of the Year (usd per share)	$ 9.57
Granted, weighted average grant date fair value (usd per share)	9.57
Vested, weighted average grant date fair value (usd per share)	9.57
Unvested restricted stock (units), weighted average grant date fair value, At the End of the Period (usd per share)	$ 9.57

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

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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- Definition

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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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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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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-Publisher FASB
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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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