SHAREHOLDERS' EQUITY - Stock based compensation plans (Details) - USD ($)	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized compensation expense	$ 0	$ 0
Stock issued (in shares)	6,364	8,225
Stock surrendered (in shares)	1,888	4,289
Stock surrendered to cover employee withholding taxes	$ 100,000	$ 100,000
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	0	0
Recognized compensation expense	$ 0
Unrecognized stock-based compensation expense	$ 0
Options fully vested / exercisable at end of period (in shares)	178,405
Exercise price low range (in USD per share)	$ 20.00
Exercise price high range (in USD per share)	$ 27.00
Expiry period (in years)	10 years
2016 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance (in shares)	329,904

The stock surrendered during the period.

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

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-Publisher FASB
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Amount of cost to be recognized for option under share-based payment arrangement.

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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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Number of shares authorized for issuance under share-based payment arrangement.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Gross number of share options (or share units) granted during the period.

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of shares issued during the period to an employee benefit plan, such as a defined contribution or defined benefit plan.

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