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Consolidated Statements of Equity (Unaudited) - 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         0
Stock options exercised $ 137 (137) 0 0 0 $ 0
Stock issued for employee stock purchase plan (in shares) 3,597          
Stock issued for employee stock purchase plan $ 72 35,535 0 0 0 35,607
Stock option expense 0 318,818 0 0 0 318,818
Investment by non-controlling interest 0 0 0 0 0 0
Dividends paid to shareholders 0 0 (590,879) 0 0 (590,879)
Comprehensive income $ 0 0 1,212,550 102,814 169,851 1,485,215
BALANCE (in shares) at Nov. 30, 2019 9,097,236          
BALANCE at Nov. 30, 2019 $ 181,945 16,367,554 45,614,390 (4,490,364) 3,244,530 60,918,055
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)           0
Stock options exercised $ 0 0 0 0 0 $ 0
Stock issued for employee stock purchase plan (in shares) 4,646          
Stock issued for employee stock purchase plan $ 93 36,099 0 0 0 36,192
Stock option expense 0 181,669 0 0 0 181,669
Investment by non-controlling interest 0 0 0 0 0 0
Dividends paid to shareholders 0 0 0 0 0 0
Comprehensive income $ 0 0 1,262,399 230,760 210,663 1,703,822
BALANCE (in shares) at Nov. 30, 2020 9,104,636          
BALANCE at Nov. 30, 2020 $ 182,093 $ 17,632,811 $ 43,735,209 $ (3,179,678) $ 3,255,689 $ 61,626,124