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4. INTANGIBLE ASSETS
12 Months Ended
Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
4. INTANGIBLE ASSETS

Intangible assets consisted of the following (in thousands):

   Useful   December 31, 2014   December 31, 2013 
   Life       Accumulated   Net Book       Accumulated   Net Book 
   (Years)   Gross   Amortization   Value   Gross   Amortization   Value 
Non-Amortizing:                                   
Kinergy tradename       $2,678   $   $2,678   $2,678   $   $2,678 
Amortizing:                                   
Customer relationships   10    4,741    (4,633)   108    4,741    (4,159)   582 
Total intangible assets, net       $7,419   $(4,633)  $2,786   $7,419   $(4,159)  $3,260 

 

Kinergy Tradename – The Company recorded a tradename valued at $2,678,000 in 2006 as part of its acquisition of Kinergy. The Company determined that the Kinergy tradename has an indefinite life and therefore, rather than being amortized, will be tested annually for impairment. The Company did not record any impairment of the Kinergy tradename for the years ended December 31, 2014, 2013 and 2012.

 

Customer Relationships The Company recorded customer relationships valued at $4,741,000 as part of its acquisition of Kinergy. The Company has established a useful life of ten years for these customer relationships.

 

Amortization expense associated with intangible assets totaled $474,000, $474,000 and $724,000 for the years ended December 31, 2014, 2013 and 2012, respectively. The weighted-average unamortized life of the intangible assets is 0.2 years. The remaining expected amortization expense relating to amortizable intangible assets is $108,000 for the year ending December 31, 2015.