XML 9 R33.htm IDEA: XBRL DOCUMENT v2.4.0.6

FAIR VALUE MEASUREMENTS (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
FAIR VALUE MEASUREMENTS
Interest Rate Swaps	$ 2,336	$ 5,064
FairValueInputsLevel1Member
FAIR VALUE MEASUREMENTS
Interest Rate Swaps
FairValueInputsLevel2Member
FAIR VALUE MEASUREMENTS
Interest Rate Swaps	2,336	5,064
FairValueInputsLevel3Member
FAIR VALUE MEASUREMENTS
Interest Rate Swaps

X

- Definition

Custom Element.

+ References

No definition available.

+ Details

Name:	rdnt_InterestRateSwaps
Namespace Prefix:	rdnt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_FairValueInputsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration