Quarterly report pursuant to Section 13 or 15(d)

4. LONG-TERM OBLIGATIONS AND OPERATING LEASE (Details)

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4. LONG-TERM OBLIGATIONS AND OPERATING LEASE (Details) - USD ($)
 3 Months Ended 257 Months Ended
Nov. 30, 2017
Aug. 31, 2017
Export Water Proceeds Received    
Remaining Third Party Obligation:    
Balance, original   $ 0
Balance, beginning $ 1,319,900  
Acquisitions   0
Relinquishment   0
Option payments   110,400
Arapahoe Tap fees [1]   533,000
Export Water Sale Payments 23,000 676,500
Balance, ending 1,342,900 1,319,900
Initial Export Water Proceeds To Pure Cycle    
Remaining Third Party Obligation:    
Balance, original   218,500
Balance, beginning 29,691,700  
Acquisitions   28,042,500
Relinquishment   2,386,400
Option payments   (42,300)
Arapahoe Tap fees [1]   (373,100)
Export Water Sale Payments (20,300) (540,300)
Balance, ending 29,671,400 29,691,700
Total Potential Third Party Obligation    
Remaining Third Party Obligation:    
Balance, original   31,807,700
Balance, beginning 1,014,600  
Acquisitions   (28,042,500)
Relinquishment   (2,386,400)
Option payments   (68,100)
Arapahoe Tap fees [1]   (159,900)
Export Water Sale Payments (2,700) (136,200)
Balance, ending 1,011,900 1,014,600
Participating Interests Liability    
Remaining Third Party Obligation:    
Balance, original   11,090,600
Balance, beginning 341,600  
Acquisitions   (9,790,000)
Relinquishment   (832,100)
Option payments   (23,800)
Arapahoe Tap fees [1]   (55,800)
Export Water Sale Payments (900) (47,300)
Balance, ending 340,700 341,600
Contingency    
Remaining Third Party Obligation:    
Balance, original   20,717,100
Balance, beginning 673,000  
Acquisitions   (18,252,500)
Relinquishment   (1,554,300)
Option payments   (44,300)
Arapahoe Tap fees [1]   (104,100)
Export Water Sale Payments (1,800) (88,900)
Balance, ending $ 671,200 $ 673,000
[1] The Arapahoe County tap fees are net of $34,522 in royalties paid to the Land Board.