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v3.21.2

FAIR VALUE MEASUREMENTS (Details) | May 31, 2021 item Asset | Aug. 31, 2020 Asset item
--- | --- | ---
Level 1 [Member] |  |
Fair Value Measurements [Abstract] |  |
Number of assets | Asset | 0 | 0
Number of liabilities | item | 0 | 0
Level 2 [Member] |  |
Fair Value Measurements [Abstract] |  |
Number of assets | Asset | 0 | 0
Number of liabilities | item | 0 | 0

X
- Definition Number of assets available in each level of input. + References No definition available. + Details
Name: | pcyo_NumberOfAssets
Namespace Prefix: | pcyo_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of liabilities available in each level of input. + References No definition available. + Details
Name: | pcyo_NumberOfLiabilities
Namespace Prefix: | pcyo_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |