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SHARE-BASED COMPENSATION - Options Exercise Price Range, Outstanding and Exercisable (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Options Outstanding
Number of options outstanding (in shares)	67,438
Weighted Average Exercise Price (in dollars per share)		$ 24.96
Weighted Average Remaining Contractual Term	4 years 4 months 17 days
Options Exercisable
Number Exercisable (in shares)	67,438
Weighted Average Exercise Price (in dollars per share)	$ 24.96
$3.39-$13.50
Outstanding and exercisable stock options under the EIP
Exercise price, low end of range (in dollars per share)	3.39
Exercise price, high end of range (in dollars per share)	$ 13.50
Options Outstanding
Number of options outstanding (in shares)	52,115
Weighted Average Exercise Price (in dollars per share)	$ 6.29
Weighted Average Remaining Contractual Term	5 years 4 days
Options Exercisable
Number Exercisable (in shares)	52,115
Weighted Average Exercise Price (in dollars per share)	$ 6.29
$54.40-$92.50
Outstanding and exercisable stock options under the EIP
Exercise price, low end of range (in dollars per share)	54.40
Exercise price, high end of range (in dollars per share)	$ 92.50
Options Outstanding
Number of options outstanding (in shares)	5,823
Weighted Average Exercise Price (in dollars per share)	$ 57.67
Weighted Average Remaining Contractual Term	3 years 26 days
Options Exercisable
Number Exercisable (in shares)	5,823
Weighted Average Exercise Price (in dollars per share)	$ 57.67
$99.90-$128.50
Outstanding and exercisable stock options under the EIP
Exercise price, low end of range (in dollars per share)	99.90
Exercise price, high end of range (in dollars per share)	$ 128.50
Options Outstanding
Number of options outstanding (in shares)	9,500
Weighted Average Exercise Price (in dollars per share)	$ 107.34
Weighted Average Remaining Contractual Term	1 year 9 months
Options Exercisable
Number Exercisable (in shares)	9,500
Weighted Average Exercise Price (in dollars per share)	$ 107.34

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- Definition

The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ 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 (g)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

+ 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)(iii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

+ 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)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (g)
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Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

+ 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 could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

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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)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)(1)
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