XML 52 R42.htm IDEA: XBRL DOCUMENT
v3.25.2

TECHNOLOGY INVESTMENT AGREEMENT (Details) - Technology Investment Agreement (TIA) |  | 1 Months Ended |  |
--- | --- | --- | --- | ---
Jul. 01, 2020 | May 31, 2021 item | Jun. 30, 2025 USD ($) | Dec. 31, 2024 USD ($)
TECHNOLOGY INVESTMENT AGREEMENT |  |  |  |
Technology investment agreement term | 10 years |  |  |
Number of assembly lines added | item |  | 2 |  |
Long-term deferred liability - TIA | $ |  |  | $ 60,918,499 | $ 63,872,553

X
- Definition The amount of Long-term deferred liability relating to technology investment agreement. + References No definition available. + Details
Name: | rvp_LongTermDeferredLiabilityTechnologyInvestmentAgreement
Namespace Prefix: | rvp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The number of assembly lines provided under the agreement. + References No definition available. + Details
Name: | rvp_NumberOfAssemblyLines
Namespace Prefix: | rvp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Technology investment agreement, term, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | rvp_TechnologyInvestmentAgreementTerm
Namespace Prefix: | rvp_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- 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/2003/role/disclosureRef -Topic 730 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483041/730-20-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 730 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483041/730-20-50-1 + Details
Name: | us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_StatementScenarioAxis=rvp_TechnologyInvestmentAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |