Significant Customers and Geographic Information (Tables)

9 Months Ended

Oct. 31, 2017

Geographic Areas Revenues From External Customers [Abstract]

Revenues by Geographic Area

During the three and nine months ended October 31, 2017 and October 31, 2016, revenues by geographic area, based on billing addresses of the customers, were as follows (in thousands):

	Three Months Ended				Nine Months Ended
	October 31,				October 31,
	2017		2016		2017		2016
United States	$	31,272	$	23,230	$	87,335	$	65,840
Foreign countries		16,068		12,212		45,693		29,917
Total revenues	$	47,340	$	35,442	$	133,028	$	95,757