Quarterly report pursuant to Section 13 or 15(d)

2. FAIR VALUE MEASUREMENTS (Details)

v2.4.1.9
2. FAIR VALUE MEASUREMENTS (Details) (USD $)
3 Months Ended 6 Months Ended
Feb. 28, 2015
Feb. 28, 2014
Feb. 28, 2015
Feb. 28, 2014
Imputed interest recorded as "Other Expense" $ 0us-gaap_InterestExpenseOther $ (403,003)us-gaap_InterestExpenseOther $ (23,816)us-gaap_InterestExpenseOther $ (1,060,238)us-gaap_InterestExpenseOther
Gross Estimated Tap Participation Fee Liability        
Balance, beginning     12,038,300us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_GrossEstimatedTapParticipationFeeLiabilityMember
 
Total gains and losses (realized and unrealized)     0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_GrossEstimatedTapParticipationFeeLiabilityMember
 
Imputed interest recorded as "Other Expense"     0us-gaap_InterestExpenseOther
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_GrossEstimatedTapParticipationFeeLiabilityMember
 
Purchases, sales, issuances, payments, and reductions resulting from foreclosures     (12,038,300)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_GrossEstimatedTapParticipationFeeLiabilityMember
 
Transfers in and/or out of Level 3     0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_GrossEstimatedTapParticipationFeeLiabilityMember
 
Balance, ending 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_GrossEstimatedTapParticipationFeeLiabilityMember
  0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_GrossEstimatedTapParticipationFeeLiabilityMember
 
Tap Participation Fee Reported Liability        
Balance, beginning     7,935,300us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_TapParticipationFeeReportLiabilityMember
 
Total gains and losses (realized and unrealized)     0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_TapParticipationFeeReportLiabilityMember
 
Imputed interest recorded as "Other Expense"     23,800us-gaap_InterestExpenseOther
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_TapParticipationFeeReportLiabilityMember
 
Purchases, sales, issuances, payments, and reductions resulting from foreclosures     (7,959,100)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_TapParticipationFeeReportLiabilityMember
 
Transfers in and/or out of Level 3     0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_TapParticipationFeeReportLiabilityMember
 
Balance, ending 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_TapParticipationFeeReportLiabilityMember
  0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_TapParticipationFeeReportLiabilityMember
 
Discount To Be Imputed As Interest Expense In Future Periods        
Balance, beginning     4,103,000us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_DiscountToBeImputedAsInterestExpenseInFuturePeriodsMember
 
Total gains and losses (realized and unrealized)     0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_DiscountToBeImputedAsInterestExpenseInFuturePeriodsMember
 
Imputed interest recorded as "Other Expense"     (23,800)us-gaap_InterestExpenseOther
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_DiscountToBeImputedAsInterestExpenseInFuturePeriodsMember
 
Purchases, sales, issuances, payments, and reductions resulting from foreclosures     (4,079,200)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_DiscountToBeImputedAsInterestExpenseInFuturePeriodsMember
 
Transfers in and/or out of Level 3     0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_DiscountToBeImputedAsInterestExpenseInFuturePeriodsMember
 
Balance, ending $ 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_DiscountToBeImputedAsInterestExpenseInFuturePeriodsMember
  $ 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByLiabilityClassAxis
= pcyo_DiscountToBeImputedAsInterestExpenseInFuturePeriodsMember