Period for recognize revenue which reported as deferred or unearned revenue.

No definition available.

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- Definition

The maximum term of lease after the additional extending period in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of additional years for which operator may extend lease in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	pcyo_
Data Type:	xbrli:durationItemType
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- References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
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Period Type:	duration

- Definition

The amount of payment the operator is required to pay to extend the right for one year.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The term for which operator may extend the right in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	pcyo_TermForWhichOperatorMayExtendRight
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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Leased area representing summation of fractional ownership working interest to whole on which oil and gas wells have not been drilled or completed that would permit production of economic quantities of oil and gas. Excludes area of undrilled acreage held by production under terms of lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1208
-Paragraph (b)

+ Details

Name:	srt_GasAndOilAreaUndevelopedNet
Namespace Prefix:	srt_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of producing oil wells and oil wells capable of production representing summation of fractional ownership working interest to whole.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1208
-Paragraph (a)

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130531-203044

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-Name Accounting Standards Codification
-Topic 606
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-Section 50
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-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130532-203044

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Ancillary revenue earned during the period from the consideration paid to the entity for the use of its rights and property by another party. Examples include licensing the use of copyrighted materials and leasing the extraction of natural resources.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7)
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:
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- Details

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Oil and Gas Lease Payments (Details)	12 Months Ended
	Aug. 31, 2019 USD ($) a Well	Aug. 31, 2018 USD ($)	Aug. 31, 2011 a	Jul. 31, 2019 USD ($)	Sep. 20, 2017 USD ($)	Aug. 31, 2017 USD ($)
Oil and Gas Lease Payments [Abstract]
Deferred revenue	$ 5,058,883	$ 477,161				$ 1,055,488
Contract revenues recognized	$ (20,361,509)	(2,190,039)
Number of drilling wells \| Well	2
Oil and gas royalty income, net	$ 148,327	191,309
OGOA [Member]
Oil and Gas Lease Payments [Abstract]
Term period of lease	3 years
Mineral estate area owned (in acres) \| a	16
Deferred revenue	$ 547,500			$ 573,700
Term for which operator may extend right	1 year
Required payment from operator for extending right for one year	$ 75,000
Number of additional years for which operator may extend lease	2 years
Maximum term of lease	5 years
Contract revenues recognized	$ (26,200)	0
Anadarko E&P Company, L.P [Member]
Oil and Gas Lease Payments [Abstract]
Term period of lease			3 years
Mineral estate area owned (in acres) \| a			634
Bison Oil and Gas, LLP [Member]
Oil and Gas Lease Payments [Abstract]
Term period of lease	3 years
Mineral estate area owned (in acres) \| a	40
Deferred revenue	$ 60,400	167,200			$ 167,200
Contract revenues recognized	$ (55,700)	$ (51,100)
Bison Oil and Gas, LLP [Member] \| OGOA [Member]
Oil and Gas Lease Payments [Abstract]
Deferred revenue				$ 573,700