SHAREHOLDERS EQUITY - Stock based compensation - Stock Options (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeited or expired (in shares)	(46,750)
Stock-based compensation expense	$ 0.3	$ 0.5
Unrecognized stock-based compensation expense	$ 0.3
Cost is expected to be recognized over a weighted-average period	7 months 6 days
Plan 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance	652,269

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

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Amount of cost to be recognized for option under share-based payment arrangement.

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For presentations that combine terminations, 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 or that expired.

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