RESTRUCTURING (Details) (USD $)	3 Months Ended	0 Months Ended
Mar. 31, 2015	Mar. 03, 2015
RESTRUCTURING
Restructuring charges	$ 406,000us-gaap_RestructuringCharges
Outstanding restructuring liability
Restructuring Charges.	406,000us-gaap_RestructuringCharges
Accrual balance at the end of the period	316,000us-gaap_RestructuringReserveCurrent
Employee Severance And Other Benefits
RESTRUCTURING
Restructuring charges	406,000
Stock-based compensation expense related to extension of the post-termination exercise period	(90,000)
Outstanding restructuring liability
Restructuring Charges.	406,000
Stock-based compensation expense related to extension of the post-termination exercise period	(90,000)
Accrual balance at the end of the period	316,000
March 2015 Restructuring
RESTRUCTURING
Number of positions before restructuring		39
Number of positions after restructuring		21
Original exercise period for vested outstanding awards after termination		90 days
Modified exercise period for vested outstanding awards after termination		1 year
Aggregate estimated restructuring charges		1,748,000
Expected cash payments		1,377,000
March 2015 Restructuring \| One-time termination benefits
RESTRUCTURING
Restructuring charges	406,000
Stock-based compensation expense related to extension of the post-termination exercise period	90,000
Outstanding restructuring liability
Restructuring Charges.	406,000
Stock-based compensation expense related to extension of the post-termination exercise period	$ 90,000

Amount expected to be recognized in earnings for the specified restructuring cost.

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- Definition

Represents the number of positions after restructuring.

+ References

No definition available.

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Represents the number of positions before restructuring.

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No definition available.

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- Definition

Represents the amount of cash expected to be paid in a future period to settle projected restructuring charges to be incurred pursuant to a duly authorized plan.

+ References

No definition available.

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- Definition

Modified exercise period in which an employee can exercise outstanding vested awards after termination, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Original exercise period in which an employee can exercise outstanding vested awards after termination, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 2

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-Name Accounting Standards Codification

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-Section S99

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

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Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 4

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 50

-Paragraph 1

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- Definition

An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

+ 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 (h)(2)(iii)

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

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