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Summary of Significant Accounting Policies (Details) - Schedule of deferred revenue - USD ($)	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Schedule of deferred revenue [Abstract]
Beginning balance	$ 1,524,918	$ 620,332
Ending balance	4,141,555	1,524,918
Increase	$ 2,616,673	$ 904,586

X

- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(5))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_DeferredRevenueCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of increase (decrease) in deferred revenue.

+ References

No definition available.

+ Details

Name:	us-gaap_DeferredRevenuePeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	wfel_ScheduleOfDeferredRevenueAbstract
Namespace Prefix:	wfel_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration