Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Revenue Recognition (Details)

v3.21.2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Revenue Recognition (Details)
gal in Millions
 12 Months Ended
Aug. 31, 2021
USD ($)
a
item
segment
gal
Aug. 31, 2020
USD ($)
item
gal
Aug. 31, 2019
USD ($)
Revenue Recognition [Abstract]      
Number of business lines | segment 2    
Total revenues | $ $ 17,125,000 $ 25,855,000  
Land [Abstract]      
Deferred revenue | $ $ 2,405,000 3,600,000 $ 5,059,000
Area of land (in acres) | a 930    
Number of formats used for selling finished lots to home builders 2    
Gain from reimbursement of construction costs | $ $ 485,000 $ 6,276,000  
Metered Water Usage [Member]      
Revenue Recognition [Abstract]      
Water delivered to customers | gal 257.8 76.2  
Percentage of water used for oil and gas exploration 60.00% 1.00%  
Water Tap Fees [Member]      
Revenue Recognition [Abstract]      
Total revenues | $ $ 4,400,000 $ 4,800,000  
Wastewater Tap Fees [Member]      
Revenue Recognition [Abstract]      
Total revenues | $ 800,000 900,000  
Special Facility Funding Recognized [Member]      
Revenue Recognition [Abstract]      
Total revenues | $ 400,000 0  
Water Tap and Construction Fee [Member]      
Land [Abstract]      
Deferred revenue | $ 0 0  
Consulting Fees [Member]      
Revenue Recognition [Abstract]      
Total revenues | $ 100,000 100,000  
Lot Sales [Member]      
Revenue Recognition [Abstract]      
Total revenues | $ 5,163,000 5,641,000  
Lot Sales - Agreement with Purchaser [Member]      
Revenue Recognition [Abstract]      
Total revenues | $ $ 1,600,000 $ 4,900,000  
Land [Abstract]      
Number of finished lots sold 22 70  
Lot Sales - Agreement with Purchaser [Member] | Homebuilder [Member]      
Land [Abstract]      
Number of Customers 1    
Lot Sales - Agreement with Builder [Member]      
Revenue Recognition [Abstract]      
Total revenues | $ $ 4,200,000 $ 14,000,000.0  
Lot Sales - Agreement with Builder [Member] | Maximum [Member]      
Land [Abstract]      
Expected delivery period for lots sold 1 year    
Phase 1 Development      
Land [Abstract]      
Proceeds from sale of lots | $ $ 26,200,000    
Number of lots 509    
Number of finished lots sold 505    
Number of platted lots sold 356    
Cumulative revenue recognized | $ $ 26,000,000.0    
Phase 1 Development | Sky Ranch CAB [Member]      
Land [Abstract]      
Number of finished lots sold 356    
Phase 1 Development | Homebuilder [Member]      
Land [Abstract]      
Number of Customers 2    
Phase 1 Development | Homebuilder [Member] | Sky Ranch CAB [Member]      
Land [Abstract]      
Number of Customers 3    
Phase 2 Development      
Land [Abstract]      
Proceeds from sale of lots | $ $ 3,900,000    
Number of lots 850    
Number of finished lots sold 152    
Number of lots under contract with homebuilder 804    
Number of lots retained for use in build-to-rent business 46    
Number of subphases 4    
Cumulative revenue recognized | $ $ 2,200,000    
Phase 2 Development | Sky Ranch CAB [Member]      
Land [Abstract]      
Number of finished lots sold 804    
Phase 2 Development | Homebuilder [Member]      
Land [Abstract]      
Number of Customers 3    
First Subphase      
Land [Abstract]      
Number of lots under contract with homebuilder 219    
Number of lots retained for use in build-to-rent business 10    
Number of lots to be constructed in a subphase 229    
First Subphase | Sky Ranch CAB [Member]      
Land [Abstract]      
Number of finished lots sold 152