STOCK-BASED COMPENSATION Stock options activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Roll Forward]
Granted, number of options outstanding	1,376,000
Stock options outstanding - remaining contractual term	2 years 2 months 19 days	4 years 15 days
Stock options exercisable - remaining contractual term	1 year 10 months 10 days	4 years 15 days
Stock options outstanding	$ 22	$ 0
Stock options exercisable	$ 11	$ 0
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price fair market value of the underlying stock on the date of grant	100.00%
Share-based Compensation Arrangement by Share-based Payment Award, Outstanding, Weighted Average Exercise Price [Roll Forward]
Options outstanding at January 1, weighted average exercise price per share	$ 8.78	$ 9.15	$ 11.21
Granted, weighted average exercise price per share	2.49	0.00	0.00
Forfeited, weighted average exercise price per share	7.32	0.00	0.00
Expired, weighted average exercise price per share	13.35	15.50	14.99
Options outstanding at December 31, weighted average exercise price per share	8.13	8.78	9.15
Options exercisable at December 31, weighted average exercise price per share	$ 8.91	$ 8.78	$ 10.47
Share-based Compensation Arrangement by Share-based Payment Award [Roll Forward]
Options outstanding at January 1, number of options outstanding	756,800	800,350	1,238,650
Granted, number of options outstanding	50,000	0	0
Forfeited, number of options outstanding	(485,000)	0	0
Expired, number of options outstanding	(115,800)	(43,550)	(438,300)
Options outstanding at December 31, number of options outstanding	206,000	756,800	800,350
Options exercisable at December 31, number of options outstanding	181,000	756,800	600,350

Stock Option Award Exercise Price as a Percentage of the Fair Market Value of a Share of Common Stock

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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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.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)-(4)
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Weighted average price of options that were either forfeited or expired.

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-Name Accounting Standards Codification
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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.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Subparagraph (c)(1)(iv)(3)
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- Definition

Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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-Publisher FASB
-Name Accounting Standards Codification
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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