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PARTICIPATING INTERESTS IN EXPORT WATER (Details) (USD $) | 12 Months Ended | 48 Months Ended
--- | --- | ---
Aug. 31, 2013 | Aug. 31, 2012
Export Water Proceeds Received |  |  |
Balance, original |  |  |
Balance, beginning | 754,700 |  |
Acquisitions |  |  |
Option payments |  | 110,400 |
Arapahoe Tap fees |  | 533,000 | [1]
Export Water Sale Payments | 158,000 | 111,300 |
Balance, ending | 912,700 | 754,700 |
Export Water Proceeds to Pure Cycle |  |  |
Balance, original |  | 218,500 |
Balance, beginning | 27,802,700 | 28,077,500 |
Acquisitions |  | 28,077,500 |
Option payments |  | (42,300) |
Arapahoe Tap fees |  | (373,100) | [1]
Export Water Sale Payments | (110,600) | (77,900) |
Balance, ending | 27,692,100 | 27,802,700 |
Total Potential Third Party Obligation |  |  |
Balance, original |  | 31,807,700 |
Balance, beginning | 3,468,800 | (28,077,500) |
Acquisitions |  | (28,077,500) |
Option payments |  | (68,100) |
Arapahoe Tap fees |  | (159,900) | [1]
Export Water Sale Payments | (47,400) | (33,400) |
Balance, ending | 3,421,400 | 3,468,800 |
Participating Interests Liability |  |  |
Balance, original |  | 11,090,600 |
Balance, beginning | 1,208,900 | (9,790,000) |
Acquisitions |  | (9,790,000) |
Option payments |  | (23,800) |
Arapahoe Tap fees |  | (55,800) | [1]
Export Water Sale Payments | (16,000) | (12,100) |
Balance, ending | 1,192,910 | 1,208,900 |
Contingency |  |  |
Balance, original |  | 20,717,100 |
Balance, beginning | 2,259,900 | (18,287,500) |
Acquisitions |  | (18,287,500) |
Option payments |  | (44,300) |
Arapahoe Tap fees |  | (104,100) | [1]
Export Water Sale Payments | (31,400) | (21,300) |
Balance, ending | $ 2,228,500 | $ 2,259,900 |
[1] | The Arapahoe County tap fees are less $34,522 in royalties paid to the Land Board.

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- Definition Acquisitions of export water rights during the period. + References No definition available. + Details
Name: | pcyo_ExportWaterAcquisitions
Namespace Prefix: | pcyo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Option payments made under the Rangeview Water Agreementment. + References No definition available. + Details
Name: | pcyo_ExportWaterOptionPayments
Namespace Prefix: | pcyo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Export water sale payments during the period. + References No definition available. + Details
Name: | pcyo_ExportWaterSalePayments
Namespace Prefix: | pcyo_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Tap fees for export water rights during the period. + References No definition available. + Details
Name: | pcyo_ExportWaterTapFees
Namespace Prefix: | pcyo_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Balance, as of the balance sheet date, of participating interests in export water. + References No definition available. + Details
Name: | pcyo_RangeviewCAAAgreementBalance
Namespace Prefix: | pcyo_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Original balance of participating interests in export water. + References No definition available. + Details
Name: | pcyo_RangeviewCAAAgreementBalanceOriginal
Namespace Prefix: | pcyo_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant