Quarterly report pursuant to Section 13 or 15(d)

5. SHAREHOLDERS' EQUITY (Details Narrative)

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5. SHAREHOLDERS' EQUITY (Details Narrative) (USD $)
3 Months Ended 6 Months Ended
Feb. 28, 2015
Feb. 28, 2014
Feb. 28, 2015
Feb. 28, 2014
Fair value of options vested $ 136,300us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1   $ 76,800us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1  
Stock-based compensation 63,800us-gaap_AllocatedShareBasedCompensationExpense 59,500us-gaap_AllocatedShareBasedCompensationExpense 132,600us-gaap_AllocatedShareBasedCompensationExpense 114,300us-gaap_AllocatedShareBasedCompensationExpense
Unrecognized share-based compensation cost $ 262,700us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized   $ 262,700us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized  
2014 Incentive Plan        
Number of shares authorized under plan 1,600,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= pcyo_IncentivePlan2014Member
  1,600,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= pcyo_IncentivePlan2014Member