STOCK-BASED COMPENSATION - Stock option activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
STOCK-BASED COMPENSATION
Number of Shares, Options outstanding at beginning	287
Number of Shares, Less options forfeited/cancelled	(205)
Number of Shares, Less options expired	0
Number of Shares, Options outstanding at ending	82		287
Number of Shares, Options exercisable at March 31, 2022	82
Weighted-Average Exercise Price, Options outstanding at beginning	$ 6.11
Weighted-Average Exercise Price, Less options forfeited/cancelled	4.11
Weighted-Average Exercise Price, Less options expired	0
Weighted-Average Exercise Price, Options outstanding at ending	5.71		$ 6.11
Weighted-Average Exercise Price, Options exercisable	$ 5.71
Weighted-Average Remaining Contractual Term (Years), Options outstanding	4 years 1 month 6 days		4 years 1 month 6 days
Weighted-Average Remaining Contractual Term (Years), Options exercisable	4 years 1 month 6 days
Aggregate Intrinsic Value, Options outstanding at beginning	$ 0
Aggregate Intrinsic Value, Options outstanding at ending	0		$ 0
Aggregate Intrinsic Value, Options exercisable	$ 0
Stock options granted	0	0

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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.

+ References

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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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 vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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