Represents the number of common stock currently outstanding in respect of RSUs.

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Number of other than options vested.

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Weighted average grant-date fair value of other than options vested.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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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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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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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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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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Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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STOCK-BASED COMPENSATION - 2015 EIP Restricted Stock Units (Details) - 2015 EIP Plan - Restricted Stock Units - USD ($) $ / shares in Units, $ in Thousands						3 Months Ended		9 Months Ended
	May 13, 2021	May 04, 2021	Feb. 23, 2021	Jul. 15, 2020	Feb. 25, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Stock Awards
Number of common shares outstanding in respect of RSUs						478,848		478,848		373,588
Number of Shares
Balance at the beginning of the period (in shares)								298,834
Granted (in shares)	33,525	18,428	103,599	42,642	173,749			157,442
Vested (in shares)								(149,747)
Balance at the end of the period (in shares)						306,529		306,529
Number of shares vested						655,644		655,644
Weighted Average Grant Date Price, Vested						$ 10.31		$ 10.31
Weighted Average Fair Value
Balance at the beginning of the period (in dollars per share)								7.49
Granted (in dollars per share)								11.90
Vested (in dollars per share)								7.72
Balance at the end of the period (in dollars per share)						$ 9.65		$ 9.65
Weighted-average remaining contractual life								1 year 7 months 9 days
Additional disclosures
Total fair value of shares vested								$ 1,814	$ 548
Unrecognized compensation cost related to nonvested stock awards
Unrecognized compensation cost						$ 1,504		$ 1,504
Weighted-average period for recognition of unrecognized compensation cost								1 year 7 months 9 days
General and Administrative Expense
Additional disclosures
Recognized nonvested stock amortization expense						$ 445	$ 339	$ 1,187	$ 899
Other Individuals
Stock Awards
Vesting period of awards								3 years