SHAREHOLDERS EQUITY (Details - Dividends) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Aug. 31, 2021	Aug. 31, 2020
Dividends Payable [Line Items]
Total Amount	$ 4,811	$ 4,250
FY 2021 1st Qtr [Member]
Dividends Payable [Line Items]
Record Date	Oct. 26, 2020
Distribution Date	Nov. 02, 2020
Number of Shares Outstanding on Record Date	19,924
Dividend per Share	$ 0.06
Total Amount	$ 1,195
FY 2021 2nd Qtr [Member]
Dividends Payable [Line Items]
Record Date	Jan. 25, 2021
Distribution Date	Feb. 01, 2021
Number of Shares Outstanding on Record Date	20,010
Dividend per Share	$ 0.06
Total Amount	$ 1,201
FY 2021 3rd Qtr [Member]
Dividends Payable [Line Items]
Record Date	Apr. 26, 2021
Distribution Date	May 03, 2021
Number of Shares Outstanding on Record Date	20,115
Dividend per Share	$ 0.06
Total Amount	$ 1,207
FY 2021 4th Qtr [Member]
Dividends Payable [Line Items]
Record Date	Jul. 26, 2021
Distribution Date	Aug. 02, 2021
Number of Shares Outstanding on Record Date	20,139
Dividend per Share	$ 0.06
Total Amount	$ 1,208
FY 2020 1st Qtr [Member]
Dividends Payable [Line Items]
Record Date		Oct. 25, 2019
Distribution Date		Nov. 01, 2019
Number of Shares Outstanding on Record Date		17,606
Dividend per Share		$ 0.06
Total Amount		$ 1,056
FY 2020 2nd Qtr [Member]
Dividends Payable [Line Items]
Record Date		Jan. 27, 2020
Distribution Date		Feb. 03, 2020
Number of Shares Outstanding on Record Date		17,646
Dividend per Share		$ 0.06
Total Amount		$ 1,059
FY 2020 3rd Qtr [Member]
Dividends Payable [Line Items]
Record Date		Apr. 24, 2020
Distribution Date		May 01, 2020
Number of Shares Outstanding on Record Date		17,769
Dividend per Share		$ 0.06
Total Amount		$ 1,066
FY 2020 4th Qtr [Member]
Dividends Payable [Line Items]
Record Date		Jul. 27, 2020
Distribution Date		Aug. 03, 2020
Number of Shares Outstanding on Record Date		17,820
Dividend per Share		$ 0.06
Total Amount		$ 1,069