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ACQUISITIONS GridSense (Details) (USD $) In Thousands, unless otherwise specified | Feb. 15, 2012 | Dec. 31, 2011 | May 20, 2010 years | May 12, 2010
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Business Acquisition [Line Items] |  |  |  |
Business Acquisition, Purchase Price Allocation, Liabilities Assumed |  |  | $ 352 |
Percentage of outstanding shares from total outstanding shares, acquired in business acquisition. |  |  |  | 70.00%
Business Acquisition, Contingent Consideration, Potential Cash Payment |  | 0 | 50 |
Business Acquisition, Cost of Acquired Entity, Purchase Price |  |  | (402) | (4,406)
Business Acquisition, Purchase Price Allocation, Gain on Step-Up of Investment |  |  |  | (1,327)
GridSense technologies finite intangible asset acquired |  |  |  | 1,793
GridSense technologies finite intangible asset acquired useful life |  |  |  | 11 years
Finite-Lived Customer Relationships, Gross | 3,236 |  |  | 253
Weighted average estimated useful life in years of the acquired customer relationships |  |  |  | 10 years
Finite-Lived Trade Names, Gross |  |  |  | 187
GridSense trade name acquired useful life |  |  |  | 15 years
Finite-Lived Noncompete Agreements, Gross | 26 |  |  | 81
The amount of finite-lived intangible assets acquired in business combination assigned to the acquiree intellectual property |  |  | (222) |
Estimated useful life in years of the acquired intellectual property. |  |  | 5 |
The amount of finite-lived intangible assets acquired in business combination assigned to the acquiree non-compete agreements |  |  | $ 100 |
Estimated useful life in years of the acquired non-compete agreements |  |  | 3 years | 3 years

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- Definition The amount of finite-lived intangible assets acquired in business combination, assigned to the acquiree non-compete agreements. + References No definition available. + Details
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- Definition Estimated useful life in years of the acquired intellectual property. + References No definition available. + Details
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- Definition Percentage of outstanding shares from total outstanding shares, acquired in business acquisition. + References No definition available. + Details
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- Definition Weighted average estimated useful life in years of the acquired customer relationships + References No definition available. + Details
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- Definition Amount of potential cash payments that could result from the contingent consideration arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph f -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 The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph d -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 The amount of acquisition cost of a business combination allocated to liabilities assumed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 98-1 -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 37 -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 Gross carrying amount before accumulated amortization as of the balance sheet date to an asset acquired in a business combination representing a favorable existing relationship with customers having a finite beneficial life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition Gross carrying amount before accumulated amortization as of the balance sheet date of payments made to third parties in exchange for their agreement not to engage in specified competitive practices in specified geographic territories for a specified period of time. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition Gross carrying amount before accumulated amortization as of the balance sheet date of the rights acquired through registration of a trade name to gain or protect exclusive use thereof for a reasonably expected period of economic benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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