Goodwill and Intangible Assets
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Dec. 31, 2011
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Goodwill and Intangible Assets [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Goodwill and Intangible Assets Disclosure [Text Block] |
GOODWILL AND INTANGIBLE ASSETS
The following table presents goodwill balances included in total assets by segment. Goodwill consisted of the following at December 31, 2010 and 2011:
Customer contracts are amortized ratably over the period of the acquired customer contracts (ranging in periods from approximately one to five years). All other intangible assets are amortized over periods ranging from approximately four to ten
years, as defined by the nature of the respective intangible asset. The following table presents intangible asset balances included in total assets by segment. Intangible assets, net, consisted of the following at December 31, 2010 and 2011:
No amortization expense related to intangible assets was recorded for the years ended December 31, 2009 and 2010. Amortization expense for the year ended December 31, 2011 related to customer contracts was $1,364,443, and is included in energy efficiency expenses in the consolidated statements of income and comprehensive income. Amortization expense for the year ended December 31, 2011 related to customer relationships, non-compete agreements, technology and trade names was $388,029, and is included in general, administrative and other expenses in the consolidated statements of income and comprehensive income.
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