Intangible Assets (Tables)
|9 Months Ended|
Oct. 31, 2020
|Intangible Assets [Abstract]|
|Schedule of Finite-lived Intangible Asset [Table Text Block]||
Intangible assets in the accompanying condensed consolidated balance sheets consisted of the following:
Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef