STOCKHOLDERS' EQUITY (Details 3) (USD $)	12 Months Ended
Dec. 31, 2014
$1.10 - $1.50
Exercise Price Range
Exercise price, low end of range (in dollars per share)	$ 1.10
Exercise price, high end of range (in dollars per share)	$ 1.50
Options Outstanding
Number of Shares	4,284,937
Weighted Average Exercise Price Per Share (in dollars per share)	$ 1.42
Weighted Average Remaining Contractual Life (In years)	7 years 4 months 28 days
$1.51 - $2.14
Exercise Price Range
Exercise price, low end of range (in dollars per share)	$ 1.51
Exercise price, high end of range (in dollars per share)	$ 2.14
Options Outstanding
Number of Shares	4,278,382
Weighted Average Exercise Price Per Share (in dollars per share)	$ 1.64
Weighted Average Remaining Contractual Life (In years)	7 years 10 months 2 days
$2.16 - $5.01
Exercise Price Range
Exercise price, low end of range (in dollars per share)	$ 2.16
Exercise price, high end of range (in dollars per share)	$ 5.01
Options Outstanding
Number of Shares	5,376,639
Weighted Average Exercise Price Per Share (in dollars per share)	$ 4.29
Weighted Average Remaining Contractual Life (In years)	7 years 10 months 28 days
$5.05 To $9.32
Exercise Price Range
Exercise price, low end of range (in dollars per share)	$ 5.05
Exercise price, high end of range (in dollars per share)	$ 9.32
Options Outstanding
Number of Shares	3,018,986
Weighted Average Exercise Price Per Share (in dollars per share)	$ 5.80
Weighted Average Remaining Contractual Life (In years)	5 years 8 months 19 days
$1.10 - $9.32
Exercise Price Range
Exercise price, low end of range (in dollars per share)	$ 1.10
Exercise price, high end of range (in dollars per share)	$ 9.32
Options Outstanding
Number of Shares	16,958,944
Weighted Average Exercise Price Per Share (in dollars per share)	$ 3.16
Weighted Average Remaining Contractual Life (In years)	7 years 4 months 17 days

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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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- Definition

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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- Definition

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.

+ 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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- Definition

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.

+ 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 (e)(1)

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

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- Definition

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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