Quarterly report pursuant to Section 13 or 15(d)

INCOME TAXES (Details)

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INCOME TAXES (Details) - USD ($)
3 Months Ended 6 Months Ended
Feb. 29, 2020
Feb. 28, 2019
Feb. 29, 2020
Feb. 28, 2019
Aug. 31, 2019
INCOME TAXES [Abstract]          
Income tax expense $ 78,841 $ 0 $ 1,965,960 $ 0  
Current income tax expense 75,700   1,244,000    
Deferred income tax expense (benefit) $ 3,100   $ 721,942 0  
Estimated annual effective tax rate     25.00%    
Effective tax rate 22.30%   24.60%    
Deferred tax assets (liabilities) [Abstract]          
Net operating loss carryforwards $ 0   $ 0   $ 609,439
Accrued compensation 0   0   113,559
Deferred revenues 119,444   119,444   149,895
Depreciation and depletion (34,207)   (34,207)   (46,408)
Non-qualified stock options 430,974   430,974   410,633
Other 45,093   45,093   46,128
Net deferred tax asset 561,304   561,304   1,283,246
Net Operating Loss Carryforwards [Abstract]          
Income taxes paid   $ 0 1,070,880 $ 0  
Net operating loss carryforwards         $ 2,500,000
Federal [Member]          
Net Operating Loss Carryforwards [Abstract]          
Income taxes paid 877,400   $ 877,400    
Federal [Member] | Minimum [Member]          
Net Operating Loss Carryforwards [Abstract]          
Operating loss carryforwards, expiry period     Aug. 31, 2036    
Federal [Member] | Maximum [Member]          
Net Operating Loss Carryforwards [Abstract]          
Operating loss carryforwards, expiry period     Aug. 31, 2038    
State [Member]          
Net Operating Loss Carryforwards [Abstract]          
Income taxes paid $ 193,500   $ 193,500    
State [Member] | Minimum [Member]          
Net Operating Loss Carryforwards [Abstract]          
Operating loss carryforwards, expiry period     Aug. 31, 2035    
State [Member] | Maximum [Member]          
Net Operating Loss Carryforwards [Abstract]          
Operating loss carryforwards, expiry period     Aug. 31, 2036