Leases, Codification Topic 842 (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2021	Jan. 31, 2020
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	5 years
Lessee, Operating Lease, Renewal Term	5 years
Depreciation of right-of-use assets	$ 442	$ 413
Interest on lease liability	24	21
Lessee, total financing lease costs	466	434
Operating lease, cost	2,205	1,536
Short-term Lease, cost	755	446
Total operating lease cost	2,960	1,982
Total financing and operating lease cost	$ 3,426	$ 2,416