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Consolidated Statements of Equity - USD ($)
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
AOCI Attributable to Parent [Member]
Noncontrolling Interest [Member]
Total
BALANCE (in shares) at Aug. 31, 2019 9,086,816          
BALANCE at Aug. 31, 2019 $ 181,736 $ 16,013,338 $ 44,992,719 $ (4,593,178) $ 3,074,679 $ 59,669,294
Stock options exercised (in shares) 6,823         6,823
Stock options exercised $ 137 (137) 0 0 0 $ 0
Stock issued for employee stock purchase plan (in shares) 6,351          
Stock issued for employee stock purchase plan $ 127 64,068 0 0 0 64,195
Stock option expense 0 1,337,774 0 0 0 1,337,774
Dividends paid to stockholders 0 0 (1,182,200)   0 (1,182,200)
Dividend received by non-controlling interest 0 0 0 0 (400,000) (400,000)
Net income (loss) 0 0 (1,337,709) 0 402,949 (934,760)
Other comprehensive income (loss) $ 0 0 0 1,182,740 (32,602) 1,150,138
BALANCE (in shares) at Aug. 31, 2020 9,099,990          
BALANCE at Aug. 31, 2020 $ 182,000 17,415,043 42,472,810 (3,410,438) 3,045,026 $ 59,704,441
Stock options exercised (in shares) 74,950         74,950
Stock options exercised $ 1,499 582,915 0 0 0 $ 584,414
Stock issued for employee stock purchase plan (in shares) 9,871          
Stock issued for employee stock purchase plan $ 197 74,136 0 0 0 74,333
Stock option expense 0 664,174 0 0 0 664,174
Dividends paid to stockholders 0 0 (1,780,956)   0 (1,780,956)
Dividend received by non-controlling interest 0 0 0 0 (400,000) (400,000)
Net income (loss) 0 0 6,281,238 0 715,499 6,996,737
Other comprehensive income (loss) $ 0 0 0 (114,592) 22,030 (92,562)
BALANCE (in shares) at Aug. 31, 2021 9,184,811          
BALANCE at Aug. 31, 2021 $ 183,696 $ 18,736,268 $ 46,973,092 $ (3,525,030) $ 3,382,555 $ 65,750,581