Annual report pursuant to Section 13 and 15(d)

PARTICIPATING INTERESTS IN EXPORT WATER (Details)

v3.10.0.1
PARTICIPATING INTERESTS IN EXPORT WATER (Details) - USD ($)
 12 Months Ended
Aug. 31, 2018
Aug. 31, 2017
Aug. 31, 2016
PARTICIPATING INTERESTS IN EXPORT WATER [Abstract]      
Percentage of original recorded liability compared to original total liability 35.00%    
Percentage of payment remitted to CAA holders allocated to recorded liability account 35.00%    
Percentage of payment remitted to CAA holders allocated to contingent obligation 65.00%    
Percentage of net proceeds from sale of export water allocated 88.00%    
Export Water Proceeds Received [Roll Forward]      
Balance at beginning of period $ 1,319,900 $ 1,261,800 $ 0
Acquisitions     0
Relinquishment     0
Option payments - Sky Ranch and The Hills at Sky Ranch     110,400
Arapahoe County tap fees     533,000
Export water sale payments 60,800 58,100 618,400
Balance at end of period 1,380,700 1,319,900 1,261,800
Initial Export Water Proceeds To Pure Cycle [Roll Forward]      
Balance at beginning of period 29,691,700 29,742,900 218,500
Acquisitions     28,042,500
Relinquishment     2,386,400
Option payments - Sky Ranch and The Hills at Sky Ranch     (42,300)
Arapahoe County tap fees     (373,100)
Export water sale payments (53,600) (51,200) (489,100)
Balance at end of period 29,638,100 29,691,700 29,742,900
Total Potential Third-Party Obligation [Roll Forward]      
Balance at beginning of period 1,014,600 1,021,500 31,807,700
Acquisitions     (28,042,500)
Relinquishment     (2,386,400)
Option payments - Sky Ranch and The Hills at Sky Ranch     (68,100)
Arapahoe County tap fees     (159,900)
Export water sale payments (7,200) (6,900) (129,300)
Balance at end of period 1,007,400 1,014,600 1,021,500
Participating Interests Liability [Roll Forward]      
Balance at beginning of period 341,558 344,000 11,090,600
Acquisitions     (9,790,000)
Relinquishment     (832,100)
Option payments - Sky Ranch and The Hills at Sky Ranch     (23,800)
Arapahoe County tap fees     (55,800)
Export water sale payments (2,500) (2,400) (44,900)
Balance at end of period 339,035 341,558 344,000
Contingency [Roll Forward]      
Balance at beginning of period 673,000 677,500 20,717,100
Acquisitions     (18,252,500)
Relinquishment     (1,554,300)
Option payments - Sky Ranch and The Hills at Sky Ranch     (44,300)
Arapahoe County tap fees     (104,100)
Export water sale payments (4,700) (4,500) (84,400)
Balance at end of period 668,300 $ 673,000 $ 677,500
Export Water [Abstract]      
Expected future export water payouts 6,600,000    
Revenue receivables from sale of export water $ 5,800,000