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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 $ 181,652 $ 14,528,951 $ 41,963,341 $ (3,597,199) $ 2,742,309 $ 55,819,054
Stock issued for employee stock purchase plan 36 17,645 17,681
Stock option expense 715,960 715,960
Dividends paid to stockholders (1,090,125) (1,090,125)
Dividend received by non-controlling interest (200,000) (200,000)
Net income (loss) 2,898,627 294,620 3,193,247
Other comprehensive income (loss) (145,059) 42,079 $ (102,980)
Stock options exercised (in shares)           0
Stock issued for employee stock purchase plan (in shares) 1,748          
Investment by non-controlling interest 134,034 $ 134,034
BALANCE (in shares) at Feb. 28, 2019 9,084,354          
BALANCE at Feb. 28, 2019 $ 181,688 15,262,556 43,771,843 (3,742,258) 3,013,042 58,486,871
BALANCE (in shares) at Nov. 30, 2018 9,084,354          
BALANCE at Nov. 30, 2018 $ 181,688 14,904,576 42,915,335 (3,918,085) 3,043,543 57,127,057
Stock issued for employee stock purchase plan
Stock option expense 357,980 357,980
Dividends paid to stockholders (545,060) (545,064)
Dividend received by non-controlling interest (200,000) (200,000)
Net income (loss) 1,401,568 150,544 1,552,056
Other comprehensive income (loss) 175,827 19,011 194,838
BALANCE (in shares) at Feb. 28, 2019 9,084,354          
BALANCE at Feb. 28, 2019 $ 181,688 15,262,556 43,771,843 (3,742,258) 3,013,042 58,486,871
BALANCE (in shares) at Aug. 31, 2019 9,086,816          
BALANCE at Aug. 31, 2019 $ 181,736 16,013,338 44,992,718 (4,593,178) 3,074,679 59,669,294
Stock issued for employee stock purchase plan 72 35,536 35,608
Stock option expense 658,470 658,470
Dividends paid to stockholders (1,182,199) (1,182,199)
Dividend received by non-controlling interest
Net income (loss) 1,392,384 250,977 1,643,361
Other comprehensive income (loss) (9,171) (23,496) $ (32,667)
Stock options exercised (in shares) 6,823         0
Stock options exercised $ 137 (137)
Stock issued for employee stock purchase plan (in shares) 3,597          
BALANCE (in shares) at Feb. 29, 2020 9,097,236          
BALANCE at Feb. 29, 2020 $ 181,945 16,707,207 45,202,903 (4,602,349) 3,302,160 60,791,866
BALANCE (in shares) at Nov. 30, 2019 9,097,236          
BALANCE at Nov. 30, 2019 $ 181,945 16,367,555 45,614,389 (4,490,364) 3,244,530 60,918,055
Stock issued for employee stock purchase plan
Stock option expense 339,652 339,652
Dividends paid to stockholders (591,320) (591,320)
Dividend received by non-controlling interest
Net income (loss) 179,834 103,988 283,822
Other comprehensive income (loss) (111,985) (46,358) (158,343)
BALANCE (in shares) at Feb. 29, 2020 9,097,236          
BALANCE at Feb. 29, 2020 $ 181,945 $ 16,707,207 $ 45,202,903 $ (4,602,349) $ 3,302,160 $ 60,791,866