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INCOME TAXES (Details) (USD $) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2013 | Mar. 31, 2012 | Dec. 31, 2012
Income Taxes [Line Items] |  |  |
Liability for uncertain tax position that would impact effective tax rate | $ 2,700,000 |  | $ 2,700,000
Uncertain tax positions included in income taxes payable | 500,000 |  | 500,000
Liability for uncertain tax positions | 2,168,000 |  | 2,161,000
Prior year liability uncertain tax positions relating to 2007 | 600,000 |  |
Interest and penalties uncertain tax positions recognized | 0 | 0 |
Accrued interest and penalties uncertain tax positions | 200,000 |  | 200,000
Deferred tax liability | 2,168,000 |  | 2,161,000
Increase in income tax benefit | 400,000 |  |
Fibreco and Gigacom [Member] |  |  |
Income Taxes [Line Items] |  |  |
Deferred tax liability | 2,100,000 |  | 2,200,000
Fibreco [Member] |  |  |
Income Taxes [Line Items] |  |  |
Deferred tax liability | 100,000 |  |
Deferred tax liabilities at the date of acquisition | 1,700,000 |  |
GigaCom [Member] |  |  |
Income Taxes [Line Items] |  |  |
Deferred tax liabilities at the date of acquisition | 600,000 |  |
TRP [Member] |  |  |
Income Taxes [Line Items] |  |  |
Deferred tax assets | $ 2,200,000 |  |
U.S. Federal [Member] |  |  |
Income Taxes [Line Items] |  |  |
Years not subject to examination by tax authorities | before 2010 |  |
State Jurisdiction [Member] |  |  |
Income Taxes [Line Items] |  |  |
Years not subject to examination by tax authorities | before 2007 |  |
Foreign jurisdictions [Member] | Asia [Member] |  |  |
Income Taxes [Line Items] |  |  |
Years not subject to examination by tax authorities | before 2004 |  |
Foreign jurisdictions [Member] | Europe [Member] |  |  |
Income Taxes [Line Items] |  |  |
Years not subject to examination by tax authorities | before 2006 |  |

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- Definition This line item represents the amount of tax benefit decrease as a result of change in law. + References No definition available. + Details
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- Definition The gross amount of unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns. + References No definition available. + Details
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b),(c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43 -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. + Details
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- Definition This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph c -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. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 15, 16 -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. + Details
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- Definition This element represents the total of interest expense recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties in the period in which the entity claims or expects to claim a tax position, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph c -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. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 15, 16 -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. + Details
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