Leases (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Oct. 31, 2019 USD ($)	Oct. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Renewal Term	10 years	10 years
Financing Lease [Member]
Lessee, Lease, Description [Line Items]
Finance Lease, Depreciation of Right-of-Use Asset,	$ 106	$ 305
Finance Lease, Interest Expense on Lease Liability	5	16
Lessee, total financing lease costs	111	321
Operating Lease [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Cost	360	1,082
Short-term Lease, Cost	119	325
Total Operating Lease Cost	479	1,407
Leasing Arrangement [Member]
Lessee, Lease, Description [Line Items]
Lease, Cost	$ 590	$ 1,728
Minimum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	1 year	1 year
Maximum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	6 years	6 years