CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Common Stock And Additional Paid In Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance, beginning of period at Aug. 31, 2019	$ 15,327	$ 22,355
Exercise of stock options	136
Stock-based compensation	295
Shares issued to Directors for services	72
Declaration of dividend		(1,056)
Net income		2,058		$ 2,058
Other comprehensive income
Balance, end of period at Nov. 30, 2019	15,830	23,357		$ 39,187
Common dividends declared per common share				$ 0.06
Balance, beginning of period at Aug. 31, 2019	15,327	22,355
Balance, end of period at Aug. 31, 2020	128,541	27,436	58	$ 156,035
Exercise of stock options	180
Stock-based compensation	449
Shares issued to Directors for services	83
Declaration of dividend		(1,195)
Net income		2,479		2,479
Other comprehensive income
Balance, end of period at Nov. 30, 2020	$ 129,253	$ 28,720	$ 58	$ 158,031
Common dividends declared per common share				$ 0.06