Leases (Details) $ in Thousands	3 Months Ended
	Apr. 30, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Renewal Term	10 years
Financing Lease [Member]
Lessee, Lease, Description [Line Items]
Finance Lease, Depreciation of Right-of-Use Asset,	$ 95
Finance Lease, Interest Expense on Lease Liability	5
Lessee, total financing lease costs	100
Operating Lease [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Cost	360
Short-term Lease, Cost	105
Total Operating Lease Cost	465
Leasing Arrangement [Member]
Lessee, Lease, Description [Line Items]
Lease, Cost	$ 565
Minimum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	1 year
Maximum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	6 years