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Intangible Assets
 12 Months Ended
Mar. 31, 2013
Intangible Assets [Abstract]  
Intangible Assets
4. Intangible Assets

Rotating Electrical Product Line

The following is a summary of the intangible assets attributable to the Company's rotating electrical product line segment subject to amortization at March 31, 2013 and 2012.
 
 
March 31, 2013
 
 
March 31, 2012
 
Weighted Average Amortization Period
 
Gross Carrying Value
 
Accumulated Amortization
 
 
Gross Carrying Value
 
 
Accumulated Amortization
 
Intangible assets subject to amortization
 
 
 
 
 
 
 
 
 
Trademarks
9 years
 
$
553,000
 
 
$
337,000
 
 
$
553,000
 
 
$
262,000
 
Customer relationships
12 years
 
 
6,464,000
 
 
 
2,743,000
 
 
 
6,464,000
 
 
 
2,096,000
 
Non-compete agreements
4 years
 
 
257,000
 
 
 
211,000
 
 
 
257,000
 
 
 
160,000
 
Total
11 years
 
$
7,274,000
 
 
$
3,291,000
 
 
$
7,274,000
 
 
$
2,518,000
 
 
Undercar Product Line

The following is a summary of the undercar product line segment's intangible assets subject to amortization at March 31, 2013 and 2012.

 
March 31, 2013
 
March 31, 2012
 
Weighted Average Amortization Period
 
Gross Carrying Value
 
Accumulated Amortization
Impairment
 
Gross Carrying Value
 
 
Accumulated Amortization
 
Intangible assets subject to amortization
 
 
 
 
 
 
 
 
 
Trademarks
20 years
 
$
11,159,000
 
 
$
1,058,000
$
10,101,000
 
 
$
11,159,000
 
 
$
500,000
 
Customer relationships
10 years
 
 
7,680,000
 
 
 
1,459,000
6,221,000
 
 
 
7,680,000
 
 
 
691,000
 
Non-compete agreements
2 years
 
 
144,000
 
 
 
136,000
8,000
 
 
 
144,000
 
 
 
64,000
 
Total
16 years
 
$
18,983,000
 
 
$
2,653,000
$
16,330,000
 
 
$
18,983,000
 
 
$
1,255,000
 
 
Consolidated amortization expense and impairment charge for acquired intangible assets for the years ended March 31, 2013, 2012, and 2011 is as follows:
 
Years Ended March 31,
 
2013
2012
2011
Amortization expense
$
2,171,000
$
2,029,000
$
774,000
Impairment of intangible assets
16,330,000
-
-
 
The consolidated aggregate estimated future amortization expense for intangible assets subject to amortization is as follows:

Year Ending March 31,
 
2014
$
738,000
2015
670,000
2016
349,000
2017
266,000
2018
266,000
Thereafter
1,694,000
Total
$
3,983,000