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EMPLOYEE STOCK COMPENSATION - Summary of Stock Options Outstanding (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, number of shares (in shares) | shares	55,069
Options outstanding, intrinsic value | $	$ 59
Options outstanding, weighted-average exercise price per share (in dollars per share)	$ 13.96
Options outstanding, weighted-average remaining contractual life (in years)	3 years 2 months 12 days
Options exercisable, number of shares (in shares) | shares	55,069
Options exercisable, intrinsic value | $	$ 59
Options exercisable, weighted-average exercise price per share (in dollars per share)	$ 13.96
Options exercisable, weighted-average remaining contractual life (in years)	3 years 2 months 12 days
$10.90 to $12.12
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Lower range of exercise price (in usd per share)	$ 10.90
Upper range of exercise price (in usd per share)	$ 12.12
Options outstanding, number of shares (in shares) | shares	3,672
Options outstanding, intrinsic value | $	$ 14
Options outstanding, weighted-average exercise price per share (in dollars per share)	$ 10.90
Options outstanding, weighted-average remaining contractual life (in years)	3 years 6 months
Options exercisable, number of shares (in shares) | shares	3,672
Options exercisable, intrinsic value | $	$ 14
Options exercisable, weighted-average exercise price per share (in dollars per share)	$ 10.90
Options exercisable, weighted-average remaining contractual life (in years)	3 years 6 months
$12.13 to $13.35
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Lower range of exercise price (in usd per share)	$ 12.13
Upper range of exercise price (in usd per share)	$ 13.35
Options outstanding, number of shares (in shares) | shares	0
Options outstanding, intrinsic value | $	$ 0
Options outstanding, weighted-average exercise price per share (in dollars per share)	$ 0
Options outstanding, weighted-average remaining contractual life (in years)	0 years
Options exercisable, number of shares (in shares) | shares	0
Options exercisable, intrinsic value | $	$ 0
Options exercisable, weighted-average exercise price per share (in dollars per share)	$ 0
Options exercisable, weighted-average remaining contractual life (in years)	0 years
$13.36 to $14.58
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Lower range of exercise price (in usd per share)	$ 13.36
Upper range of exercise price (in usd per share)	$ 14.58
Options outstanding, number of shares (in shares) | shares	35,232
Options outstanding, intrinsic value | $	$ 45
Options outstanding, weighted-average exercise price per share (in dollars per share)	$ 13.44
Options outstanding, weighted-average remaining contractual life (in years)	4 years 4 months 24 days
Options exercisable, number of shares (in shares) | shares	35,232
Options exercisable, intrinsic value | $	$ 45
Options exercisable, weighted-average exercise price per share (in dollars per share)	$ 13.44
Options exercisable, weighted-average remaining contractual life (in years)	4 years 4 months 24 days
$14.59 to $15.81
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Lower range of exercise price (in usd per share)	$ 14.59
Upper range of exercise price (in usd per share)	$ 15.81
Options outstanding, number of shares (in shares) | shares	16,165
Options outstanding, intrinsic value | $	$ 0
Options outstanding, weighted-average exercise price per share (in dollars per share)	$ 15.81
Options outstanding, weighted-average remaining contractual life (in years)	6 months
Options exercisable, number of shares (in shares) | shares	16,165
Options exercisable, intrinsic value | $	$ 0
Options exercisable, weighted-average exercise price per share (in dollars per share)	$ 15.81
Options exercisable, weighted-average remaining contractual life (in years)	6 months

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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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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 number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

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Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

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