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LEASES (Details - Additional Information) $ in Millions | 12 Months Ended
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Dec. 31, 2022 USD ($)
Lessee, Lease, Description [Line Items] |
Operating lease not yet commenced | $ 11.8
Minimum |
Lessee, Lease, Description [Line Items] |
Operating lease, term of contract | 5 years
Operating lease, renewal term | 10 years
Lease term of contract | 5 years
Operating lease, lease not yet commenced, term of contract | 1 year
Maximum |
Lessee, Lease, Description [Line Items] |
Operating lease, term of contract | 15 years
Operating lease, renewal term | 35 years
Lease term of contract | 8 years
Operating lease, lease not yet commenced, term of contract | 15 years

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- Definition Lessee Lease Term of Contract + References No definition available. + Details
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- Definition Lessee Operating Lease Lease Not Yet Commenced Undiscounted Amount + References No definition available. + Details
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Namespace Prefix: | rdnt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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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 No definition available. + Details
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Period Type: | duration

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- Definition Term of lessee's operating lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918673-209980 + Details
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- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918673-209980 + Details
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X
- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918673-209980 + Details
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Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

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- Details
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- Details
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