STOCK-BASED COMPENSATION (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Stock-based compensation
Stock-based compensation expense	$ 2,418	$ 1,493	$ 4,542	$ 2,837
Other than options granted (in shares)	0	0	67,600
Restricted stock
Stock-based compensation
Stock-based compensation expense	$ 1,201	$ 550	$ 2,356	1,082
Other than options granted (in shares)			28,220
Unrecognized compensation expense	8,347		$ 8,347
Weighted-average recognition period			2 years 4 months 24 days
Performance stock
Stock-based compensation
Stock-based compensation expense	$ 847	479	$ 1,478	844
Other than options granted (in shares)			39,380
Earn out basis if all goals are met (as a percent)	200.00%		200.00%
Unrecognized compensation expense	$ 6,039		$ 6,039
Weighted-average recognition period			2 years 2 months 12 days
Stock appreciation rights
Stock-based compensation
Stock-based compensation expense	360	446	$ 692	876
Unrecognized compensation expense	964		$ 964
Weighted-average recognition period			1 year 1 month 6 days
Stock options
Stock-based compensation
Stock-based compensation expense	10	$ 18	$ 16	$ 35
Unrecognized compensation expense	$ 33		$ 33
Weighted-average recognition period			1 year 1 month 6 days

Percentage of third interim earn out which is a basis for vesting.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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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).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(01)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

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.

+ References

No definition available.

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