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 ($)
 9 Months Ended 245 Months Ended
May 31, 2017
Aug. 31, 2016
Export Water Proceeds Received    
Remaining Third Party Obligation:    
Balance, original   $ 0
Balance, beginning $ 1,261,800  
Acquisitions   0
Option payments   110,400
Arapahoe Tap fees [1]   533,000
Export Water Sale Payments 50,700 618,400
Balance, ending 1,312,500 1,261,800
Initial Export Water Proceeds To Pure Cycle    
Remaining Third Party Obligation:    
Balance, original   218,500
Balance, beginning 29,742,900  
Acquisitions   30,428,900
Option payments   (42,300)
Arapahoe Tap fees [1]   (373,100)
Export Water Sale Payments (44,700) (489,100)
Balance, ending 29,698,200 29,742,900
Total Potential Third Party Obligation    
Remaining Third Party Obligation:    
Balance, original   31,807,700
Balance, beginning 1,021,500  
Acquisitions   (30,428,900)
Option payments   (68,100)
Arapahoe Tap fees [1]   (159,900)
Export Water Sale Payments (6,000) (129,300)
Balance, ending 1,015,500 1,021,500
Participating Interests Liability    
Remaining Third Party Obligation:    
Balance, original   11,090,600
Balance, beginning 344,000  
Acquisitions   (10,622,100)
Option payments   (23,800)
Arapahoe Tap fees [1]   (55,800)
Export Water Sale Payments (2,100) (44,900)
Balance, ending 341,900 344,000
Contingency    
Remaining Third Party Obligation:    
Balance, original   20,717,100
Balance, beginning 677,500  
Acquisitions   (19,806,800)
Option payments   (44,300)
Arapahoe Tap fees [1]   (104,100)
Export Water Sale Payments (3,900) (84,400)
Balance, ending $ 673,600 $ 677,500
[1] The Arapahoe County tap fees are net of $34,522 in royalties paid to the Land Board.