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Commitments and Contingencies - Schedule of Guarantee to Related party, Bank Beneficiary (Details) - Zhejiang Leiya Technology Co., Ltd [Member] | 12 Months Ended
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Dec. 31, 2025 CNY (¥)
Gain Contingencies [Line Items] |
Guarantee Balance | ¥ 25,750,000
Maturity Date | Jun. 09, 2026

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- Definition The amount of guarantee to a related party. + References No definition available. + Details
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Namespace Prefix: | raya_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Date of maturity or expiration of arrangements with a related party (for example, but not limited to, leasing and debt arrangements between related parties), in YYYY-MM-DD format. + References No definition available. + Details
Name: | raya_MaturityDateOfRelatedParty
Namespace Prefix: | raya_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483049/450-30-50-1 + Details
Name: | us-gaap_GainContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_RelatedPartyTransactionAxis=raya_ZhejiangLeiyaTechnologyCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |