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Intangible Assets
3 Months Ended
Jun. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets
Intangible Assets

The following table summarizes our intangible assets:
 
June 30, 2013
 
March 31, 2013
 
Gross
 
Net
 
Gross
 
Net
 
carrying
Accumulated
carrying
 
carrying
Accumulated
carrying
(In thousands)
amount
amortization
amount
 
amount
amortization
amount
Amortized intangible assets:
 
 
 
 
 
 
 
Customer relationships
$
10,775

$
(9,404
)
$
1,371

 
$
10,775

$
(9,179
)
$
1,596

Non-competition agreements
2,700

(2,278
)
422

 
2,700

(2,213
)
487

Developed technology
20,153

(10,055
)
10,098

 
19,548

(10,055
)
9,493

Patented technology
80

(80
)

 
80

(80
)

Accumulated impairment
(9,493
)

(9,493
)
 
(9,493
)

(9,493
)
 
24,215

(21,817
)
2,398

 
23,610

(21,527
)
2,083

Unamortized intangible assets:
 
 
 
 
 
 
 
Trade names
10,100

 N/A

10,100

 
10,100

 N/A

10,100

Accumulated impairment
(900
)
 N/A

(900
)
 
(900
)
 N/A

(900
)
 
9,200

 N/A

9,200

 
9,200

 N/A

9,200

Total intangible assets
$
33,415

$
(21,817
)
$
11,598

 
$
32,810

$
(21,527
)
$
11,283



Amortization expense relating to intangible assets was $0.3 million for the three months ended June 30, 2013, and 2012. Amortization expense relating to developed technology software intangible assets for the three months June 30, 2012, including Guest 360™, was $0.2 million, and is included in Products cost of goods sold.

The following table summarizes our remaining estimated amortization expense relating to intangible assets. Included in these amounts is $0.6 million related to acquired developed technology.
 
Estimated
 
Amortization
(In thousands)
Expense
Fiscal year ending March 31,
 
2014
$
961

2015
1,043

2016
121

2017
121

2018
121

2019
31

Total
$
2,398