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INFORMATION ON GEOGRAPHIC AREAS AND MAJOR CUSTOMERS (Schedule of Revenues by Geographic Area) (Details) (Geographic Concentration [Member], Revenues [Member]) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Segment Reporting Information [Line Items] |  |  |  |  |  |
Percentage | 100.00%us-gaap_ConcentrationRiskPercentage1 |  | 100.00%us-gaap_ConcentrationRiskPercentage1 |  | 100.00%us-gaap_ConcentrationRiskPercentage1 |
USA [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Percentage | 45.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = country_US |  | 77.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = country_US |  | 81.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = country_US |
Japan [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Percentage | 40.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = country_JP |  | 2.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = country_JP |  | 1.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = country_JP |
Asia [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Percentage | 11.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = us-gaap_AsiaMember | [1] | 14.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = us-gaap_AsiaMember | [1] | 13.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = us-gaap_AsiaMember | [1]
Europe [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Percentage | 4.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember | [1] | 7.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember | [1] | 5.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember | [1]
[1] | Represents revenues from individual countries of less than 10% each.

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