XML 41 R21.htm IDEA: XBRL DOCUMENT v2.4.1.9
Financial Instruments (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Jun. 30, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term Investments $ 4,965us-gaap_ShortTermInvestments $ 10,822us-gaap_ShortTermInvestments
Fair Value, Inputs, Level 1 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term Investments 123us-gaap_ShortTermInvestments
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member		 96us-gaap_ShortTermInvestments
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Fair Value, Inputs, Level 2 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term Investments 4,842us-gaap_ShortTermInvestments
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member		 10,726us-gaap_ShortTermInvestments
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Fair Value, Inputs, Level 3 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term Investments      
Mutual Funds [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term Investments 123us-gaap_ShortTermInvestments
/ us-gaap_FairValueByAssetClassAxis
= prcp_MutualFundsMember		 96us-gaap_ShortTermInvestments
/ us-gaap_FairValueByAssetClassAxis
= prcp_MutualFundsMember
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term Investments 123us-gaap_ShortTermInvestments
/ us-gaap_FairValueByAssetClassAxis
= prcp_MutualFundsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member		 96us-gaap_ShortTermInvestments
/ us-gaap_FairValueByAssetClassAxis
= prcp_MutualFundsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Mutual Funds [Member] | Fair Value, Inputs, Level 3 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term Investments      
Fixed Deposits And Certificates Of Deposit [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term Investments 4,412us-gaap_ShortTermInvestments
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_BankTimeDepositsMember		 9,165us-gaap_ShortTermInvestments
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_BankTimeDepositsMember
Fixed Deposits And Certificates Of Deposit [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term Investments 4,412us-gaap_ShortTermInvestments
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_BankTimeDepositsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member		 9,165us-gaap_ShortTermInvestments
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_BankTimeDepositsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Fixed Deposits And Certificates Of Deposit [Member] | Fair Value, Inputs, Level 3 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term Investments      
Variable Rate Demand Obligation [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term Investments 430us-gaap_ShortTermInvestments
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_VariableRateDemandObligationMember		 1,325us-gaap_ShortTermInvestments
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_VariableRateDemandObligationMember
Variable Rate Demand Obligation [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term Investments 430us-gaap_ShortTermInvestments
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_VariableRateDemandObligationMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member		 1,325us-gaap_ShortTermInvestments
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_VariableRateDemandObligationMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Variable Rate Demand Obligation [Member] | Fair Value, Inputs, Level 3 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term Investments      
Repurchase Agreements [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term Investments   236us-gaap_ShortTermInvestments
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_RepurchaseAgreementsMember
Repurchase Agreements [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term Investments   236us-gaap_ShortTermInvestments
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_RepurchaseAgreementsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Repurchase Agreements [Member] | Fair Value, Inputs, Level 3 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term Investments