XML 56 R45.htm IDEA: XBRL DOCUMENT
v3.25.1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue recognition (Details) |  | 12 Months Ended
--- | --- | ---
Feb. 05, 2024 item | Dec. 31, 2024 USD ($) item | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Revenue recognition |  |  |  |
Estimated contractual allowances |  | $ 2,100,000 | $ 2,100,000 |
License revenue payable to patent owner, as a percent |  | 50.00% |  |
Sales, net |  | $ 33,049,533 | 43,596,926 | $ 94,818,938
Licensing fees |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 189,000 | 778,000 | 0
Syringes |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 22,629,888 | 34,155,340 | 86,738,861
Blood Collection Products |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 1,425,607 | 1,926,571 | 2,953,849
EasyPoint Needles |  |  |  |
Revenue recognition |  |  |  |
Number of units subject to recall | item | 477,600 |  |  |
Estimated expense related to recall |  | 0 | 116,000 |
Sales, net |  | 8,948,186 | 7,248,742 | 4,674,278
Other Products |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 45,852 | 266,273 | 451,950
U.S. sales (excluding U.S. government) |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  |  |  | 36,492,275
U.S. sales (excluding U.S. government) | Syringes |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  |  |  | 29,283,122
U.S. sales (excluding U.S. government) | Blood Collection Products |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  |  |  | 2,685,785
U.S. sales (excluding U.S. government) | EasyPoint Needles |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  |  |  | 4,481,202
U.S. sales (excluding U.S. government) | Other Products |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  |  |  | 42,166
Sales to U.S. government |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  |  |  | 15,731,136
Sales to U.S. government | Syringes |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  |  |  | 15,731,136
U.S. sales |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 29,374,145 | 34,599,754 | 36,492,275
U.S. sales | Syringes |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 19,491,747 | 26,119,940 |
U.S. sales | Blood Collection Products |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 1,259,289 | 1,414,783 |
U.S. sales | EasyPoint Needles |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 8,595,794 | 7,031,798 |
U.S. sales | Other Products |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 27,315 | 33,233 |
North and South America sales (excluding U.S.) |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 1,960,769 | 6,085,166 | 29,126,820
North and South America sales (excluding U.S.) | Syringes |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 1,895,393 | 5,858,726 | 28,720,378
North and South America sales (excluding U.S.) | Blood Collection Products |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 96 |  |
North and South America sales (excluding U.S.) | EasyPoint Needles |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 59,040 |  | 2,608
North and South America sales (excluding U.S.) | Other Products |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 6,240 | 226,440 | 403,834
Other international sales |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 1,714,619 | 2,912,006 | 13,468,707
Other international sales | Syringes |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 1,242,748 | 2,176,674 | 13,004,225
Other international sales | Blood Collection Products |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 166,222 | 511,788 | 268,064
Other international sales | EasyPoint Needles |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | 293,352 | 216,944 | 190,468
Other international sales | Other Products |  |  |  |
Revenue recognition |  |  |  |
Sales, net |  | $ 12,297 | $ 6,600 | $ 5,950
U.S. |  |  |  |
Revenue recognition |  |  |  |
Period for return of incorrect domestic shipments |  | 10 days |  |
Number of times overstocking returns are limited | item |  | 2 |  |
Period for return of product due to overstock |  | 12 months |  |
Maximum percentage of distributor's total purchase for the prior 12-month period |  | 1.00% |  |

X
- Definition The percentage of revenue from licensing agreements that is payable to the owner of certain patented technology under certain conditions. + References No definition available. + Details
Name: | rvp_LicenseRevenuePercentagePayableToPatentOwner
Namespace Prefix: | rvp_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of units shipped into market which is subject to voluntary recall due to defect. + References No definition available. + Details
Name: | rvp_NumberOfUnitsShippedIntoMarketSubjectToVoluntaryRecall
Namespace Prefix: | rvp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the maximum percentage of distributor's total purchase in prior 12-month period for overstock return. + References No definition available. + Details
Name: | rvp_RevenueRecognitionMaximumPercentageOfDistributorsTotalPurchaseInPriorTwelveMonthPeriodForOverstockReturn
Namespace Prefix: | rvp_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of overstock returns available to a customer within a specified period of time. + References No definition available. + Details
Name: | rvp_RevenueRecognitionOverstockReturnLimitNumber
Namespace Prefix: | rvp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The period of time specified for overstock returns. + References No definition available. + Details
Name: | rvp_RevenueRecognitionOverstockReturnPeriod
Namespace Prefix: | rvp_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the period for return of incorrect shipments, following arrival at the distributor's facility. + References No definition available. + Details
Name: | rvp_RevenueRecognitionPeriodForReturnOfIncorrectShipments
Namespace Prefix: | rvp_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from change in estimate of transaction price which (increases) decreases obligation to transfer good or service to customer for which consideration from customer has been received or is due. Includes, but is not limited to, change in assessment of whether estimate of variable consideration is constrained. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 + Details
Name: | us-gaap_ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 8: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 + Details
Name: | us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Reflects the amount charged against earnings comprised of the costs to announce and effect a recall of defective merchandise. + 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(3)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
Name: | us-gaap_InventoryRecallExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 41 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-41 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (ee) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 4: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 5: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 924 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479941/924-10-S99-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 30 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-42 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-40 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-4 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_LicenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=rvp_SyringesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=rvp_BloodCollectionProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=rvp_EasyPointNeedlesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=rvp_OtherProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=rvp_UnitedStatesSalesExcludingUnitedStatesGovernmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=rvp_UnitedStatesGovernmentSalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=rvp_UnitedStatesSalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=rvp_NorthAndSouthAmericaSalesExcludingUnitedStatesSalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=rvp_OtherInternationalSalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GeographicDistributionAxis=us-gaap_GeographicDistributionDomesticMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |