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Summary of Significant Accounting Policies (Details) (Total accounts receivable, Credit concentration risk, Major customers)
3 Months Ended 9 Months Ended
Jun. 30, 2014
customer
Mar. 31, 2015
Total accounts receivable | Credit concentration risk | Major customers
   
Concentration of Credit Risk and Other Risks and Uncertainties    
Number of significant customers 1aray_ConcentrationRiskNumberOfSignificantCustomers
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CreditConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= aray_MajorCustomersMember
 
Percentage of concentration risk 13.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CreditConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= aray_MajorCustomersMember
10.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CreditConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= aray_MajorCustomersMember