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CONCENTRATION OF CREDIT RISK (Details)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenues | Largest customer
CONCENTRATION OF CREDIT RISK
Concentration risk percentage	16.00%	17.00%	15.00%
Accounts receivable | Customer concentration risk | Two customers
CONCENTRATION OF CREDIT RISK
Number of customers	2	2	2
Accounts receivable | Customer concentration risk | Customer One
CONCENTRATION OF CREDIT RISK
Concentration risk percentage	29.00%	13.00%	18.00%
Accounts receivable | Customer concentration risk | Customer Two
CONCENTRATION OF CREDIT RISK
Concentration risk percentage	23.00%	12.00%	11.00%
Purchases | Vendor concentration risk
CONCENTRATION OF CREDIT RISK
Concentration risk percentage	12.00%
Number of vendors	1

X

- Definition

Represents the number of major customers.

+ References

No definition available.

+ Details

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X

- Definition

Represents the number of major vendors.

+ References

No definition available.

+ Details

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X

- Details

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X

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 18

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13531-108611

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