Leases (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jul. 31, 2019 USD ($)	Jul. 31, 2019 USD ($)
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,	$ 104	$ 199
Finance Lease, Interest Expense on Lease Liability	6	11
Lessee, total financing lease costs	110	210
Operating Lease [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Cost	362	722
Short-term Lease, Cost	101	206
Total Operating Lease Cost	463	928
Leasing Arrangement [Member]
Lessee, Lease, Description [Line Items]
Lease, Cost	$ 573	$ 1,138
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