SHAREHOLDERS EQUITY - Stock based compensation - Stock Options (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options forfeited, cancelled or terminated	16,150
Stock-based compensation expense	$ 0.1	$ 0.2
Unrecognized stock-based compensation expense	$ 0.5	$ 1.2
Cost is expected to be recognized over a weighted-average period	1 year
Plan 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance	717,804
Maximum number of shares eligible to be granted after modifications to the plan	1,167,601
2008 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options forfeited, cancelled or terminated	449,797
Amount of consideration paid to the company upon plan modification	$ 0.0

Maximum number of shares eligible to be granted under the plan after modifications.

No definition available.

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- Definition

Amount of consideration paid to the company by outstanding options are forfeited, cancelled or terminated under exiting plan and those amounts will be transferred to the new plan.

+ References

No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

+ References

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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.

+ References

No definition available.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

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.

+ References

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