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LONG-TERM OBLIGATIONS AND OPERATING LEASE, Long-Term Obligations (Details) | 12 Months Ended
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Aug. 31, 2021 USD ($) LetterOfCredit item acre ft | Aug. 31, 2020 USD ($) acre ft
WISE Partnership [Abstract] |  |
Number of letters of credit | LetterOfCredit | 4 |
Long-term debt | $ 0 | $ 0
Letters of credit total | $ 2,300,000 |
SMWA [Member] |  |
WISE Partnership [Abstract] |  |
Number of other governmental or quasi-governmental water providers | item | 9 |
Number of members | item | 10 |
Rangeview District [Member] | Wise Partnership 49 Acre Feet [Member] |  |
WISE Partnership [Abstract] |  |
Volume of water purchased | acre ft |  | 49
Payments for water |  | $ 100,000
Rangeview District [Member] | Wise Partnership 120 Acre Feet [Member] |  |
WISE Partnership [Abstract] |  |
Volume of water purchased | acre ft | 120 |
Payments for water | $ 600,000 |

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- Definition Total number of letters of credit entered in to by the company. + References No definition available. + Details
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Namespace Prefix: | pcyo_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition The number of members to deliver water of the SMWA, Denver Water and Aurora Water. + References No definition available. + Details
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Namespace Prefix: | pcyo_
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Balance Type: | na
Period Type: | duration

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- Definition The number of other governmental or quasi-governmental water providers member in SMWA. + References No definition available. + Details
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Namespace Prefix: | pcyo_
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- References No definition available. + Details
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- Definition The volume of surface water and groundwater rights purchased, along with certain storage rights. + References No definition available. + Details
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Namespace Prefix: | pcyo_
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Balance Type: | na
Period Type: | duration

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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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Period Type: | instant

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- Definition Amount of long-term debt and lease obligation, classified as noncurrent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The cash outflow for the purchase of a facility and equipment that provides water supply which includes wells, reservoirs, pumping stations, and control facilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details
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- Details
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- Details
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- Details
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- Details
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