COMMITMENTS AND CONTINGENCIES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2012
Exchange rate
Percentage of appreciation or depreciation of Russian ruble against US dollar	6.00%	4.00%
Average increase in percentage of the average value of the Russian Ruble against the US Dollar against corresponding prior period	9.00%	7.00%
Foreign exchange forward contracts
Assets:
Fair value of the Company's derivative assets	69	69
Liabilities:
Derivatives designated as hedging instruments	145	145
Notional amount of fair value hedges	10,293	10,293
Notional amount of economic hedges	6,000	6,000
Foreign exchange forward contracts \| Low end of range
Fair value of forward transactions in consolidated balance sheets
Maturity period of short-term derivative instruments		1 month
Foreign exchange forward contracts \| High end of range
Fair value of forward transactions in consolidated balance sheets
Maturity period of short-term derivative instruments		1 year

Represents the average percentage of the average value of the functional currency against the reporting currency.

No definition available.

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- Definition

Represents the maturity period of short-term derivative instruments.

+ References

No definition available.

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- Definition

Represents the percentage of appreciation or depreciation of the functional currency against the reporting currency.

+ References

No definition available.

+ Details

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- Definition

Fair value as of the balance sheet date of foreign currency derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets on the balance sheet.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Fair value as of the balance sheet date of all derivative liabilities designated as foreign currency fair value hedging instruments.

+ References

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- Definition

Aggregate notional amount of all foreign currency derivatives not designated as hedging instruments. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959

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- Definition

Aggregate notional amount of all foreign currency derivatives designated as hedging instruments in fair value hedges. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

+ References

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