CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 1,395	$ 1,017	$ 930	$ 2,885
Other comprehensive loss:
Foreign currency translation adjustments	(156)	(422)	(225)	(624)
Comprehensive income	$ 1,239	$ 595	$ 705	$ 2,261