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WATER AND LAND ASSETS, The Lost Creek Water Supply (Details) $ in Millions | 1 Months Ended |
--- | --- | ---
Aug. 31, 2019 USD ($) a acre ft | Aug. 31, 2021 a
The Lost Creek Water Supply [Abstract] |  |
Area of land (in acres) | a |  | 930
The Lost Creek Water Supply [Member] |  |
The Lost Creek Water Supply [Abstract] |  |
Area of land (in acres) | a | 260 |
Cost of water and land portions of asset acquisition | $ | $ 3.5 |
The Lost Creek Water Supply [Member] | Ditch Water [Member] |  |
The Lost Creek Water Supply [Abstract] |  |
Volume of water purchased | 150 |
The Lost Creek Water Supply [Member] | Renewable Ground Water [Member] |  |
The Lost Creek Water Supply [Abstract] |  |
Volume of water purchased | 800 |
The Lost Creek Water Supply [Member] | Deep Ground Water [Member] |  |
The Lost Creek Water Supply [Abstract] |  |
Volume of water purchased | 70 |

X
- Definition The cost of the water and land portions of the asset acquisition. + References No definition available. + Details
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Namespace Prefix: | pcyo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition The volume of surface water and groundwater rights purchased, along with certain storage rights. + References No definition available. + Details
Name: | pcyo_VolumeOfWaterPurchased
Namespace Prefix: | pcyo_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | duration

X
- Definition Area of land held. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis=pcyo_DeepGroundWaterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |