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 (in shares)	4,210
Stock issued for employee stock purchase plan	$ 84	52,462				52,546
Stock option expense		1,073,940				1,073,940
Dividend received by non-controlling interest					(200,000)	(200,000)
NET (LOSS) INCOME			4,380,776		453,435	4,834,211
Other comprehensive (loss) income				(609,273)	12,805	(596,468)
Dividends paid to stockholders			(1,635,183)			$ (1,635,183)
Stock options exercised (in shares)						0
Investment by non-controlling interest					134,034	$ 134,034
BALANCE (in shares) at May. 31, 2019	9,086,816
BALANCE at May. 31, 2019	$ 181,736	15,655,353	44,708,934	(4,206,472)	3,142,583	59,482,134
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
Stock issued for employee stock purchase plan (in shares)	2,462
Stock issued for employee stock purchase plan	$ 48	34,817				34,865
Stock option expense		357,980				357,980
NET (LOSS) INCOME			1,482,149		158,815	1,640,964
Other comprehensive (loss) income				(464,214)	(29,274)	(493,488)
Dividends paid to stockholders			(545,058)			(545,058)
BALANCE (in shares) at May. 31, 2019	9,086,816
BALANCE at May. 31, 2019	$ 181,736	15,655,353	44,708,934	(4,206,472)	3,142,583	59,482,134
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)	6,351
Stock issued for employee stock purchase plan	$ 127	64,068				64,195
Stock option expense		998,122				998,122
Dividend received by non-controlling interest					(200,000)	(200,000)
NET (LOSS) INCOME			427,163		283,674	710,837
Other comprehensive (loss) income				(236,159)	(77,685)	(313,844)
Dividends paid to stockholders			(1,182,200)			$ (1,182,200)
Stock options exercised (in shares)	6,823					6,823
Stock options exercised	$ 137	(137)
BALANCE (in shares) at May. 31, 2020	9,099,990
BALANCE at May. 31, 2020	$ 182,000	17,075,391	44,237,682	(4,829,337)	3,080,668	59,746,404
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
Stock issued for employee stock purchase plan (in shares)	2,754
Stock issued for employee stock purchase plan	$ 55	28,532				28,587
Stock option expense		339,652				339,652
Dividend received by non-controlling interest					(200,000)	(200,000)
NET (LOSS) INCOME			(965,221)		32,697	(932,524)
Other comprehensive (loss) income				(226,988)	(54,189)	(281,177)
BALANCE (in shares) at May. 31, 2020	9,099,990
BALANCE at May. 31, 2020	$ 182,000	$ 17,075,391	$ 44,237,682	$ (4,829,337)	$ 3,080,668	$ 59,746,404