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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, 2018 9,082,606          
BALANCE at Aug. 31, 2018 $ 90,826 $ 14,619,777 $ 41,963,341 $ (3,597,199) $ 2,742,309 $ 55,819,054
Stock issued for employee stock purchase plan (in shares) 1,748         1,748
Stock issued for employee stock purchase plan $ 18 17,663 $ 17,681
Stock option expense 357,980 357,980
Investment by non-controlling interest 134,034 134,034
Dividends paid to shareholders (545,061) (545,061)
Comprehensive income (loss) 1,497,055 (320,886) 167,200 $ 1,343,369
Stock options exercised (in shares)           0
BALANCE (in shares) at Nov. 30, 2018 9,084,354          
BALANCE at Nov. 30, 2018 $ 90,844 14,995,420 42,915,335 (3,918,085) 3,043,543 $ 57,127,057
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 issued for employee stock purchase plan (in shares) 3,597         3,597
Stock issued for employee stock purchase plan $ 72 35,535 $ 35,607
Stock option expense 318,818 318,818
Investment by non-controlling interest
Dividends paid to shareholders (590,879) (590,879)
Comprehensive income (loss) 1,212,550 102,814 169,851 $ 1,485,215
Stock options exercised (in shares) 6,823         0
Stock options exercised $ 137 (137)
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