Income Taxes Provision/Benefit Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2018
Current:
Federal	$ (19)	$ (19)	$ 0
State	(120)	(91)	0
International	(1,051)	(155)	(291)
Total current	(1,190)	(265)	(291)
Deferred:
Federal	0	0	100
State	0	0	0
International	93	43	29
Total deferred	93	43	129
Total (provision for) benefit from income taxes	$ (1,097)	$ (222)	$ (162)