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Rental Income, Net - Schedule of Rental Income (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Schedule Of Rental Income Abstract |  |  |
Rental income | $ 265,755 | $ 251,542 | $ 411,962
Rental expense | (111,910) | (97,071) | (216,615)
Total rental income, net | $ 153,845 | $ 154,471 | $ 195,347

X
- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
Name: | raya_LeaseAndRentalExpenses
Namespace Prefix: | raya_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Income earned by providing the use of assets to an outside party in exchange for a payment or series of payments that is operating in nature. + References No definition available. + Details
Name: | raya_RentalIncome
Namespace Prefix: | raya_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | raya_ScheduleOfRentalIncomeAbstract
Namespace Prefix: | raya_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Income earned by providing the use of assets to an outside party in exchange for a payment or series of payments that is nonoperating in nature. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
Name: | us-gaap_RentalIncomeNonoperating
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration