SHAREHOLDERS EQUITY - Stock based compensation - Financial Performance Units (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Financial Performance Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	84,027
Financial Performance Units Granted Prior to May 1, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum percentage of shares can be issued	100.00%
Maximum number of shares can be issued	10,035
Stock-based compensation expense	$ 64
Unrecognized compensation expense	$ 79
Unrecognized compensation expense recognition period (in years)	1 year
Financial Performance Units Granted Prior to May 1, 2019 \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Financial performance threshold percentage	150.00%
Financial Performance Units Granted Prior to May 1, 2019 \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Financial performance threshold percentage	0.00%
Maximum percentage of shares can be issued	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]
Granted (in shares)	1,866	62,569
Maximum percentage of shares can be issued	150.00%
Maximum number of shares can be issued	86,148
Stock-based compensation expense	$ 312	$ 110
Unrecognized compensation expense	$ 527
Unrecognized compensation expense recognition period (in years)	3 years 1 month 6 days
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]
Granted (in shares)	58,993
Maximum percentage of shares can be issued	150.00%
Maximum number of shares can be issued	87,675
Stock-based compensation expense	$ 156
Unrecognized compensation expense	$ 627
Unrecognized compensation expense recognition period (in years)	4 years
Financial Performance Units Granted on November 18, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	23,168
Remainder threshold awards	50.00%
Maximum percentage of shares can be issued	126.00%
Maximum number of shares can be issued	29,268
Stock-based compensation expense	$ 17
Unrecognized compensation expense	$ 397
Unrecognized compensation expense recognition period (in years)	3 years 10 months 24 days

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

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The percentage of threshold for remaining awards.

+ References

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- Definition

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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- Definition

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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- Definition

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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No definition available.

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- Definition

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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- Definition

Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

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