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SEGMENT INFORMATION (Details) $ in Millions | 9 Months Ended
--- | ---
May 31, 2018 USD ($) BusinessLine
SEGMENT INFORMATION [Abstract] |
Number of business lines | BusinessLine | 2
Real estate inventory and reimbursable costs | $ | $ 3.7

X
- Definition Number of business lines in operation by the entity. + References No definition available. + Details
Name: | pcyo_NumberOfBusinessLines
Namespace Prefix: | pcyo_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying amount as of the balance sheet date, net of valuation allowances and impairment losses, of costs of land expected to be developed in the near term and reimbursable costs. + References No definition available. + Details
Name: | pcyo_RealEstateInventoryAndReimbursableCosts
Namespace Prefix: | pcyo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_SegmentReportingAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration