Condensed Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
Jul. 31, 2021	Apr. 30, 2021	Jul. 31, 2020	Apr. 30, 2020	Jan. 31, 2021	Jan. 31, 2020	Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]
Other comprehensive income loss foregin currency translation adjustment net of tax	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Sale of Unit, net of underwriting discount and offering expenses							17,250,000

Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580

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Balance Type:	credit
Period Type:	duration