Financing Arrangements Unamortized debt Issuance costs (Details) - USD ($) $ in Thousands		Apr. 30, 2019	Jan. 31, 2019
Line of Credit Facility [Line Items]
Unamortized debt issuance costs	[1]	$ 105	$ 132

[1] Unamortized debt issuance costs are amortized over the term of the Credit Agreement and are reported as "Other assets" in the Consolidated Balance Sheets.