Acquired Intangible Assets (Tables)

9 Months Ended

Oct. 31, 2013

Goodwill And Intangible Assets Disclosure [Abstract]

Carrying Value of Intangible Assets

The following table reflects the carrying value of intangible assets as of October 31, 2013:

	October 31, 2013
	Cost		Accumulated Amortization			Net Book Value
Intellectual property	$	3,505	$	(672	)	$	2,833
Access to facilities contract		38		(38	)		—
Total	$	3,543	$	(710	)	$	2,833

The following table reflects the carrying value of intangible assets as of January 31, 2013:

	January 31, 2013
	Cost		Accumulated Amortization			Net Book Value
Intellectual property	$	3,505	$	(409	)	$	3,096
Access to facilities contract		38		(38	)		—
Total	$	3,543	$	(447	)	$	3,096