SHARE OPTION PLAN (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	12 Months Ended
May 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	480,000	480,000	350,000	525,000
Expected life of options (in years)	5 years	3 years 6 months	2 years	3 years 6 months
Vesting period	3 years
Granted (in dollars per share)	$ 8.79	$ 8.79	$ 13.45	$ 12.19
Weighted average fair value of options granted (in dollars per share)		$ 2.87	$ 1.76	$ 2.68
Risk free interest rate		0.33%	1.40%	2.36%
Expected share price volatility		44.60%	21.60%	25.00%
Expected dividend yield		0.00%	0.00%	0.00%
Options exercised (in shares)		129,000	17,500	65,000
Total intrinsic value of options exercised during the period		$ 0.1	$ 0.2	$ 0.3
New shares issued (in shares)			6,869	18,246
Exercisable at end of year (in shares)		578,500	418,167	236,167
Intrinsic value of exercisable options		$ 0.0	$ 0.0	$ 1.2
Weighted average remaining contractual term		2 years
Unrecognized compensation costs related to non-vested options granted		$ 1.0	0.7	0.8
Unrecognized compensation costs		$ 0.0	$ 0.0	$ 2.0
Unrecognized compensation costs, period of recognition (in years)		10 months 24 days	8 months 12 days	1 year 3 months 18 days
Additional paid-in capital
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock options, compensation cost recognized in the period		$ 1.0
APIC, share-based payment arrangement, option, increase for cost recognition		$ 1.0	$ 0.9	$ 0.8

Employee stock options, compensation cost recognized in the period.

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Amount of increase to additional paid-in capital (APIC) for recognition of cost for option under share-based payment arrangement.

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

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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 option under share-based payment arrangement.

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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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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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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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- Definition

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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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

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

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Expected term of 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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- Definition

Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.

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Number of share options (or share units) exercised during the current period.

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