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INCOME TAXES (Schedule of Reconciliation of Effective Income Tax Rate and Federal Statutory Rate) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Reconciliation of effective income tax rate and the federal statutory rate |  |  |
U.S. Federal tax (benefit) at statutory rate | $ (10,026)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | $ (7,133)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | $ (11,183)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
U.S. State tax (benefit)/expense, net of federal income tax benefit | 628 us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | (360)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | 187 us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Stock compensation expense | 745 us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost | 574 us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost | 996 us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
Effect of differences in foreign tax rates | 8,390 us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential | (30,994)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential | 422 us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential
Effect of tax rate changes on deferred taxes |  | 2,407 us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate | 7 us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate
Change in deferred tax valuation allowance | 1,824 us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | 38,234 us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | 11,511 us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Tax credits | (535)us-gaap_IncomeTaxReconciliationTaxCredits | (552)us-gaap_IncomeTaxReconciliationTaxCredits | (358)us-gaap_IncomeTaxReconciliationTaxCredits
Other | 592 us-gaap_IncomeTaxReconciliationOtherAdjustments | 175 us-gaap_IncomeTaxReconciliationOtherAdjustments | 810 us-gaap_IncomeTaxReconciliationOtherAdjustments
Total | $ 1,618 us-gaap_IncomeTaxExpenseBenefit | $ 2,351 us-gaap_IncomeTaxExpenseBenefit | $ 2,392 us-gaap_IncomeTaxExpenseBenefit

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e32123-109318 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 1 -Article 4 + Details
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- Definition The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 2 -Article 4 + Details
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