Debt Instrument, Leverage Ratio

No definition available.

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- Definition

Debt Instrument, Periodic Payment, Percent

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Periodic Payment Terms, Amortization Increase

+ References

No definition available.

+ Details

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Namespace Prefix:	rdnt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123466204&loc=SL6036836-161870

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 50
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-URI https://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Balance Type:	na
Period Type:	instant

- 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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Balance Type:	na
Period Type:	duration

- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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-URI https://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of the required periodic payments applied to principal.

+ References

+ Details

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Balance Type:	debit
Period Type:	duration

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- Details

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- Details

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CREDIT FACILITIES AND NOTES PAYABLE (Details - Senior Credit Facilities) $ in Millions		3 Months Ended	12 Months Ended
	Mar. 31, 2023 USD ($)	Mar. 31, 2021	Dec. 31, 2022 USD ($)	Dec. 31, 2021
Medium-term Notes \| Truist \| Subsequent Event
Debt Instrument [Line Items]
Debt periodic payment	$ 1.9
Debt periodic payment, percent of total amount	1.00%
Debt periodic payment, amortization increase	$ 0.9
Medium-term Notes \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Truist
Debt Instrument [Line Items]
Basis spread on variable rate			4.28%
First Lien Term Loans \| Term Loan \| Barclays
Debt Instrument [Line Items]
Periodic payment, principal			$ 1.8
Revolving Credit Facility \| Barclays
Debt Instrument [Line Items]
Effective interest rate			9.50%
Revolving Credit Facility \| Amendment No. 6 First Lien Credit Agreement \| Line of Credit
Debt Instrument [Line Items]
Debt instrument, leverage ratio		3.50
Revolving Credit Facility \| Amendment No. 6 First Lien Credit Agreement \| Line of Credit \| Eurodollar Rate Spread
Debt Instrument [Line Items]
Basis spread on variable rate				3.25%
Effective interest rate			4.73%
Revolving Credit Facility \| Amendment No. 6 First Lien Credit Agreement \| Line of Credit \| Eurodollar Rate Spread \| 3.5 or less
Debt Instrument [Line Items]
Basis spread on variable rate		3.00%
Revolving Credit Facility \| Amendment No. 6 First Lien Credit Agreement \| Line of Credit \| Eurodollar Rate Spread \| ≤ 3.00x
Debt Instrument [Line Items]
Basis spread on variable rate			3.00%
Revolving Credit Facility \| Amendment No. 6 First Lien Credit Agreement \| Line of Credit \| Base Rate Spread
Debt Instrument [Line Items]
Effective interest rate			7.50%
Revolving Credit Facility \| Amendment No. 6 First Lien Credit Agreement \| Line of Credit \| Base Rate Spread \| ≤ 3.00x
Debt Instrument [Line Items]
Basis spread on variable rate			2.00%