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Intangible Assets
9 Months Ended
Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets
Intangible Assets and Software Development Costs

The following table summarizes our intangible assets and software development costs:
 
December 31, 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

$
(9,855
)
$
920

 
$
10,775

$
(9,179
)
$
1,596

Non-competition agreements
2,700

(2,408
)
292

 
2,700

(2,213
)
487

Developed technology
10,660

(10,125
)
535

 
10,055

(10,055
)

Patented technology
80

(80
)

 
80

(80
)

 
24,215

(22,468
)
1,747

 
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

$
(22,468
)
$
10,947

 
$
32,810

$
(21,527
)
$
11,283

 
 
 
 
 
 
 
 
Software development costs
$
12,447

$
(88
)
$
12,359

 
$
9,493

$

$
9,493

Project expenditures not yet in use
10,747


10,747

 
5,596


5,596

Accumulated impairment
(9,493
)
N/A

(9,493
)
 
(9,493
)
N/A

(9,493
)
Total software development costs
$
13,701

$
(88
)
$
13,613

 
$
5,596

$

$
5,596





The following table summarizes our remaining estimated amortization expense relating to in service intangible assets and software development costs.
 
Estimated
 
Amortization
(In thousands)
Expense
Fiscal year ending March 31,
 
Remainder of fiscal 2014
$
468

2015
1,634

2016
712

2017
712

2018
712

2019
375

Total
$
4,613


Amortization expense relating to intangible assets was $0.3 million and $0.5 million for the three months ended December 31, 2013, and 2012, respectively, and $0.9 million and $1.6 million for the nine months ended December 31, 2013 and 2012, respectively. Amortization expense relating to software development costs was $0.1 million for the three and nine months ended December 31, 2013. Amortization expense for acquired and internally developed intangibles that are related to revenue generating products is included in Products cost of goods sold.

Capitalized software development costs that are internally developed are carried on our balance sheet at net realizable value, net of accumulated amortization. We capitalized approximately $4.3 million and $1.5 million during the three months ended December 31, 2013 and 2012, respectively, and $10.0 million and $3.1 million during the nine months ended December 31, 2013 and 2012, respectively.