| 
 6.  Intangibles 
  
Intangible assets at September 30, 2011and March 31, 2011were related to the CHS Transactions and consisted of the following: 
  
| 
   
 | 
   
 | 
 Gross Carrying 
Amount at 
September 30, 
2011 
 | 
   
 | 
 Accumulated 
Amortization 
 | 
   
 | 
 Net Carrying 
Amount at 
September 30, 
2011 
 | 
   
 | 
 Gross Carrying 
Amount at 
March 31, 
2011 
 | 
   
 | 
 Accumulated 
Amortization 
 | 
   
 | 
 Net Carrying 
Amount at 
March 31, 
2011 
 | 
   
 | 
 
| 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
 
| 
 Trademarks 
 | 
   
 | 
 $ 
 | 
 47,753 
 | 
   
 | 
 $ 
 | 
  
 | 
   
 | 
 $ 
 | 
 47,753 
 | 
   
 | 
 $ 
 | 
 49,403 
 | 
   
 | 
 $ 
 | 
  
 | 
   
 | 
 $ 
 | 
 49,403 
 | 
   
 | 
 
| 
 Developed technology  
 | 
   
 | 
 10,943 
 | 
   
 | 
 (850 
 | 
 ) 
 | 
 10,093 
 | 
   
 | 
 11,321 
 | 
   
 | 
 (600 
 | 
 ) 
 | 
 10,721 
 | 
   
 | 
 
| 
 Customer relationships  
 | 
   
 | 
 101,124 
 | 
   
 | 
 (12,144 
 | 
 ) 
 | 
 88,980 
 | 
   
 | 
 104,319 
 | 
   
 | 
 (7,240 
 | 
 ) 
 | 
 97,079 
 | 
   
 | 
 
| 
 Backlog 
 | 
   
 | 
 10,088 
 | 
   
 | 
 (10,088 
 | 
 ) 
 | 
  
 | 
   
 | 
 10,480 
 | 
   
 | 
 (10,480 
 | 
 ) 
 | 
  
 | 
   
 | 
 
| 
 Certification 
 | 
   
 | 
 498 
 | 
   
 | 
  
 | 
   
 | 
 498 
 | 
   
 | 
 516 
 | 
   
 | 
  
 | 
   
 | 
 516 
 | 
   
 | 
 
| 
 Other 
 | 
   
 | 
 1,634 
 | 
   
 | 
 (424 
 | 
 ) 
 | 
 1,210 
 | 
   
 | 
 1,634 
 | 
   
 | 
 (297 
 | 
 ) 
 | 
 1,337 
 | 
   
 | 
 
| 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
 
| 
 Total 
 | 
   
 | 
 $ 
 | 
 172,040 
 | 
   
 | 
 $ 
 | 
 (23,506 
 | 
 ) 
 | 
 $ 
 | 
 148,534 
 | 
   
 | 
 $ 
 | 
 177,673 
 | 
   
 | 
 $ 
 | 
 (18,617 
 | 
 ) 
 | 
 $ 
 | 
 159,056 
 | 
   
 | 
 
 
  
Trademarks and certifications have indefinite lives. Developed technology, customer relationships, and other intangible assets have estimated lives of 20 years, 10 years, and 6 years, respectively. The weighted average useful life for the group is 10 years. 
  
The net carrying amounts of intangible assets are affected by currency translation adjustments.   As compared to the net carrying amounts at March 31, 2011, intangible assets at September 30, 2011, were approximately $4.8 million lower due to fluctuations in exchange rates used to value intangible assets carried in foreign currency. 
 |