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RETIREMENT PLAN - Deferred Compensation Plan (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2014	Dec. 31, 2021
Retirement Benefits [Abstract]
Percent of EBITDA contributed		0.25%
Contributions	$ 0	$ 150
Liability	$ 242		$ 242
Vesting period	7 years
Vesting percentage, year one	0.00%
Vesting percentage, year two	5.00%
Vesting percentage, year three	15.00%
Vesting percentage, year four	20.00%
Vesting percentage, year five	30.00%
Vesting percentage, year six	50.00%
Vesting percentage, year seven	100.00%
Amount vested	$ 1,413

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Amount of contributions made by employer into fund established for purposes of making future disbursement to individual in accordance with deferred compensation arrangement.

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The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 710
-SubTopic 10
-Section 30
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363

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