EARNINGS PER COMMON SHARE - Anti-dilutive Securities (Details) - shares	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
EARNINGS PER COMMON SHARE
Total potentially dilutive securities	210,476	614,116
Stock options
EARNINGS PER COMMON SHARE
Total potentially dilutive securities	168,872	419,197
Time Vesting Units
EARNINGS PER COMMON SHARE
Total potentially dilutive securities	996	88,121
Financial Performance Units
EARNINGS PER COMMON SHARE
Total potentially dilutive securities	32,713	70,397
Restricted Stock Awards
EARNINGS PER COMMON SHARE
Total potentially dilutive securities	7,895	36,401

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration