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Accounts Receivable - Schedule of Changes of Allowance for Doubtful Accounts (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024
Accounts Receivable, after Allowance for Credit Loss, Current [Abstract] |  |
Beginning balance | $ (259,555) | $ (39,280)
Provision adjustment for accounts receivable | (103,145) | (224,534)
Exchange difference | (11,365) | 4,259
Ending balance | $ (374,065) | $ (259,555)

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- Definition Amount of allowance for credit loss on accounts receivable. + References No definition available. + Details
Name: | raya_AllowanceForDoubtfulAccountsReceivableAmount
Namespace Prefix: | raya_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of exchange difference. + References No definition available. + Details
Name: | raya_ExchangeDifference
Namespace Prefix: | raya_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_AccountsReceivableNetCurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of direct write-downs of accounts receivable charged against the allowance. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration