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Goodwill and Other Intangible Assets
3 Months Ended
Mar. 31, 2013
Goodwill and Other Intangible Assets [Abstract]  
Goodwill and Other Intangible Assets
Note 5.  Goodwill and Other Intangible Assets

We have goodwill in all three of our operating units: Fiber and Data Segment goodwill resulted from our acquisition of IdeaOne Telecom in 2012, CP Telecom in 2009 and Enventis Telecom in 2005. Equipment Segment goodwill resulted from our acquisition of Enventis Telecom and Telecom Segment goodwill resulted from our acquisition of Heartland Telecommunications in 1997. The tax deductible portion of goodwill is $26,964,000. Our acquisition of IdeaOne Telecom resulted in goodwill of $1,725,000 which is deductible for tax purposes.

(Dollars in thousands)
 
March 31, 2013
 
 
December 31, 2012
 
Fiber and Data
 
$
5,384
 
 
$
5,384
 
Equipment
 
$
596
 
 
$
596
 
Telecom
 
$
23,048
 
 
$
23,048
 
 
The components of intangible assets are as follows:

(Dollars in thousands)
 
 
As of March 31, 2013
 
 
As of December 31, 2012
 
 
Gross Carrying
 
 
Accumulated
 
 
Gross Carrying
 
 
Accumulated
 
                                      Useful Lives
 
Amount
 
 
Amortization
 
 
Amount
 
 
Amortization
 
Definite-lived intangible assets
 
 
 
 
 
 
 
 
    Customer relationships
1 - 8 years
 
$
8,459
 
 
$
5,543
 
 
$
8,499
 
 
$
5,368
 
    Other intangibles
1 - 5 years
 
 
2,930
 
 
 
1,298
 
 
 
2,930
 
 
 
1,250
 
  Total
 
 
$
11,389
 
 
$
6,841
 
 
$
11,429
 
 
$
6,618
 

In the first quarter of 2013, we reduced the carrying value of the customer relationships by $40,000.  This impairment loss was directly related to our decision to no longer provide wireless internet service in the Fargo, North Dakota market. See Note 4 "Long-Lived Assets."

Amortization expense related to the definite-lived intangible assets was $223,000 and $138,000 for the three months ended March 31, 2013 and 2012, respectively. Total estimated amortization expense for the remaining nine months of 2013 and the five years subsequent to 2013 is as follows: 2013 (April 1 – December 31) – $660,000; 2014 - $749,000; 2015 - $616,000; 2016 - $565,000; 2017 - $554,000; 2018 - $554,000.