Leases Lease Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Oct. 31, 2019	Oct. 31, 2019
Lease Cash flows [Abstract]
Operating Lease, Payments	$ 360	$ 1,082
Finance Lease, Interest Payment on Liability	5	16
Finance Lease, Principal Payments	106	305
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	13	411
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 0	$ 0