Investment in CPAC (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Dec. 31, 2012	Dec. 31, 2012
Investment in CPAC
Loss on deconsolidation of a consolidated variable interest entity	$ 3,442	$ 3,442
CPAC
Investment in CPAC
Loss on deconsolidation of a consolidated variable interest entity	$ 3,400	$ 3,400

Represents the gain (loss) recognized on deconsolidation of a variable interest entity.

No definition available.

Name:	aray_VariableInterestEntityDeconsolidationGainOrLoss
Namespace Prefix:	aray_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration