Geographic and Segment Information (Tables)

12 Months Ended

Jan. 31, 2014

Segment Reporting [Abstract]

Revenues by Geographic Location

Revenues by geographic location in total and as a percentage of total revenues are as follows:

	Year Ended January 31,
	2014					2013					2012
	Revenue		Percentage of Revenue			Revenue		Percentage of Revenue			Revenue		Percentage of Revenue
Geographic location:
United States	$	12,202		22.3	%	$	11,182		22.9	%	$	10,409		22.7	%
Japan		8,810		16.2	%		10,024		20.5	%		9,937		21.6	%
Germany		10,287		18.9	%		7,925		16.2	%		5,959		13.0	%
France		9,424		17.3	%		7,358		15.1	%		8,866		19.3	%
Korea		4,684		8.6	%		4,196		8.6	%		3,865		8.4	%
United Kingdom		4,658		8.5	%		3,770		7.7	%		2,671		5.8	%
Sweden		2,046		3.8	%		2,206		4.5	%		2,170		4.7	%
Other		2,403		4.4	%		2,207		4.5	%		2,053		4.5	%
	$	54,514		100.0	%	$	48,868		100.0	%	$	45,930		100.0	%

Net Long-Lived Assets by Principal Geographic Areas

 Net long-lived assets by principal geographic area were as follows:

	As of January 31,
	2014		2013		2012
United States	$	6,098	$	4,678	$	3,080
France		849		1,068		62
Germany		117		144		79
Japan		201		204		123
Other		91		82		20
	$	7,356	$	6,176	$	3,364