Leases Prior Year Future Minimum Lease Payments (Details) $ in Thousands	Jan. 31, 2019 USD ($)
Prior Year Operating Lease Future Minimum Payments [Abstract]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 2,213
Operating Leases, Future Minimum Payments, Due in Two Years	1,939
Operating Leases, Future Minimum Payments, Due in Three Years	728
Operating Leases, Future Minimum Payments, Due in Four Years	356
Operating Leases, Future Minimum Payments, Due in Five Years	140
Operating Leases, Future Minimum Payments, Due Thereafter	0
Operating Leases, Future Minimum Payments Due	5,376
Capital Leases, Future Minimum Payments Due, Next Twelve Months	182
Capital Leases, Future Minimum Payments Due in Two Years	102
Capital Leases, Future Minimum Payments Due in Three Years	44
Capital Leases, Future Minimum Payments Due in Four Years	2
Capital Leases, Future Minimum Payments Due in Five Years	0
Capital Leases, Future Minimum Payments Due Thereafter	0
Capital Leases, Future Minimum Payments Due	330
Capital Leases, Future Minimum Payments, Executory Costs	(14)
Capital Leases, Future Minimum Payments, Interest Included in Payments	(32)
Capital Lease Obligations	$ 284