SHARE-BASED COMPENSATION, RESTRICTED STOCK (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Share-based compensation
Stock-based compensation (in dollars)	$ 52	$ 70
Restricted Securities
Number of Grants
Unvested balance at	6,402
Unvested balance at	6,402
Weighted-Average Grant Date Fair Value
Unvested balance at (in dollars per share)	$ 25.67
Unvested balance at (in dollars per share)	$ 25.67
Share-based compensation
Stock-based compensation (in dollars)	$ 24	$ 27
Unrecognized compensation
Total unrecognized compensation expense	$ 96
Period for unrecognized compensation expense is estimated to be recognized	1 year 1 month 10 days

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

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

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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