Income Taxes - Schedule of Provision For Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2018	Jan. 31, 2017	Jan. 31, 2016
Current:
Federal	$ (430)	$ 26	$ 29
State	75	122	146
Foreign	1,426	770	298
Total	1,071	918	473
Deferred:
Federal	(134)	96	61
State	18
Foreign	(240)	(100)	156
Total	(356)	(4)	217
Provision for income taxes	$ 715	$ 914	$ 690