SHAREHOLDERS EQUITY - Stock based compensation - Financial Performance Units (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Financial performance threshold percentage	150.00%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Financial performance threshold percentage	0.00%
Financial Performance Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	41,366
Financial Performance Units Granted Prior to May 1, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares can be issued	9,577
Unrecognized compensation expense	$ 38
Unrecognized compensation expense recognition period (in years)	6 months
Stock-based compensation expense	$ 18	$ 34
Financial Performance Units Granted Prior to May 1, 2019 \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target threshold of awards	100.00%
Financial Performance Units Granted Prior to May 1, 2019 \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target threshold of awards	50.00%
Financial Performance Units Granted From May 1, 2019 Through April 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of awards accruing at maximum threshold	150.00%
Maximum number of shares can be issued	83,961
Unrecognized compensation expense	$ 431
Unrecognized compensation expense recognition period (in years)	2 years 7 months 6 days
Granted (in shares)		1,866
Stock-based compensation expense	$ 117	$ 181
Financial Performance Units Granted From May 01, 2020 Through December 31 2020, Excluding November 18, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of awards accruing at maximum threshold	150.00%
Maximum number of shares can be issued	85,044
Unrecognized compensation expense	$ 533
Unrecognized compensation expense recognition period (in years)	3 years 6 months
Granted (in shares)		58,294
Stock-based compensation expense	$ 109	$ 39
Financial Performance Units Granted on November 18, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of awards accruing at maximum threshold	150.00%
Remainder threshold awards	50.00%
Maximum number of shares can be issued	34,752
Unrecognized compensation expense	$ 363
Unrecognized compensation expense recognition period (in years)	3 years 4 months 24 days
Stock-based compensation expense	$ 64
Financial Performance Units Granted On May 03 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of awards accruing at maximum threshold	150.00%
Maximum number of shares can be issued	61,854
Unrecognized compensation expense	$ 1,039
Unrecognized compensation expense recognition period (in years)	4 years 6 months
Granted (in shares)	41,366
Stock-based compensation expense	$ 57

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The percentage of threshold stated for achieving entity's financial performance metrics.

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Percent Of Awards Accruing At Maximum Threshold

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The percentage of threshold for remaining awards.

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

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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 nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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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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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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