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Intangible Assets and Goodwill
12 Months Ended
Mar. 31, 2012
Intangible Assets and Goodwill
5.   Intangible Assets and Goodwill

Intangibles
 
Intangible assets that have definite lives consist of the following (in thousands):

   
March 31, 2012
 
   
Weighted
Average Lives
in Years
 
Amortization
Method
 
Carrying
Value
   
Accumulated Amortization
   
Intangibles Net
 
Customer list
  15  
Straight Line
  $ 475     $ 372     $ 103  
Trademarks
  15  
Cash Flow
    2,270       949       1,321  
Technology
  10  
Cash Flow
    10,950       9,027       1,923  
Patents pending
        673       --       673  
Patents
  10  
Straight Line
    764       246       518  
Total Intangibles
      $ 15,132     $ 10,594     $ 4,538  
                             
   
March 31, 2011
 
   
Weighted
Average Lives
in Years
 
Amortization
Method
 
Carrying
Value
   
Accumulated Amortization
   
Intangibles Net
 
Customer list
  15  
Straight Line
  $ 475     $ 360     $ 115  
Trademarks
  15  
Cash Flow
    2,270       798       1,472  
Technology
  10  
Cash Flow
    10,950       7,886       3,064  
Patents pending
        619       --       619  
Patents
  10  
Straight Line
    620       177       443  
Total Intangibles
      $ 14,934     $ 9,221     $ 5,713  
 
Amortization expense was approximately $1.4 million and $1.6 million for the years ended March 31, 2012 and March 31, 2011, respectively.  The current patents held by the Company have remaining useful lives ranging from 2 years to 20 years.

The cash flow method of amortization is based upon management’s estimate of how the intangible asset contributes to our cash flows and best represents the pattern of how the economic benefits of the intangible asset will be consumed or used up.  Such amortization is initially derived from the estimated undiscounted cash flows that were used in determining the original fair value of the intangible asset at the acquisition date and is monitored for significant changes in subsequent periods.

Assuming no impairment to the intangible value, future amortization expense for intangible assets and patents are as follows:

Intangible Assets and Patents (000’s)(a)
 
2013
  $ 1,159  
2014
    972  
2015
    530  
2016
    258  
2017
    260  
2018 & after
    686  
Total
  $ 3,865  
(a) Patent pending costs of $673,000 are not included in the chart above.  These costs will be amortized beginning the month the patents are granted.

Goodwill
 
Goodwill reflected on the balance sheet as of March 31, 2012 and March 31, 2011 is net of previously recorded impairment charges of $954,000.