Intangible Assets

12 Months Ended

Jan. 31, 2013

Intangible Assets

5. Intangible Assets

Intangible assets at January 31, 2013 and 2012 consisted of the following:

	As of January 31, 2013
	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
	(in thousands)
Intangible assets	$	2,400	$	2,400	$	—

	As of January 31, 2012
	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
	(in thousands)
Intangible assets	$	2,400	$	2,130	$	270

Intangible assets are recorded at cost and amortized over their estimated useful lives of three years. The aggregated amortization expense for the years ended January 31, 2013, 2012 and 2011 was approximately $0.3 million, $0.5 million and $1.0 million, respectively. There was no future amortization expense related to the intangible asset as of January 31, 2013.