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Inventories, Net - Schedule of Movements of Inventory Reserves (Details) - USD ($)	9 Months Ended		12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Schedule of Movements of Inventory Reserves [Abstract]
Beginning balance	$ 514,021	$ 431,363	$ 431,363	$ 279,985
Addition	678,157	287,946	456,209	151,378
Write off	(256,147)	(316,278)	(373,551)
Ending Balance	$ 936,030	$ 403,031	$ 514,021	$ 431,363

X

- Definition

Inventory addition amounts.

+ References

No definition available.

+ Details

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Namespace Prefix:	flye_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Inventory write off amount.

+ References

No definition available.

+ Details

Name:	flye_InventoryWriteOff
Namespace Prefix:	flye_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_InventoryGrossAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of valuation reserve for inventory.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 330
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.BB)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480581/330-10-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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Balance Type:	credit
Period Type:	instant