Leases Operating and Financing Lease Obligations (Details) $ in Thousands	Jan. 31, 2020 USD ($)
Leases [Abstract]
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months	$ 2,406
Lessee, Operating Lease, Liability, Payments, Due Year Two	1,178
Lessee, Operating Lease, Liability, Payments, Due Year Three	444
Lessee, Operating Lease, Liability, Payments, Due Year Four	232
Lessee, Operating Lease, Liability, Payments, Due Year Five	134
Lessee, Operating Lease, Liability, Payments, Due after Year Five	570
Lessee, Operating Lease, Liability, Payments, Due, Total	4,964
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	322
Operating Lease, Liability, Total	4,642
Finance Lease, Liability, Payments, Due Next Twelve Months	271
Finance Lease, Liability, Payments, Due Year Two	160
Finance Lease, Liability, Payments, Due Year Three	84
Finance Lease, Liability, Payments, Due Year Four	21
Finance Lease, Liability, Payments, Due Year Five	0
Finance Lease, Liability, Payments, Due after Year Five	0
Finance Lease, Liability, Payment, Due, Total	536
Finance Lease, Liability, Undiscounted Excess Amount	21
Finance Lease, Liability, Total	$ 515