Note 8 - Stockholders' Equity (Tables)

12 Months Ended

Aug. 31, 2019

Notes Tables

Dividends Declared [Table Text Block]

Declaration Date	Amount	Record Date	Payable Date
October 24, 2018	$0.06	November 7, 2018	November 21, 2018
January 23, 2019	$0.06	February 6, 2019	February 22, 2019
April 25, 2019	$0.06	May 9, 2019	May 23, 2019
July 24, 2019	$0.06	August 7, 2019	August 21, 2019

Declaration Date	Amount	Record Date	Payable Date
November 20, 2017	$0.05	December 8, 2017	December 21, 2017
January 24, 2018	$0.05	February 7, 2018	February 21, 2018
April 25, 2018	$0.05	May 9, 2018	May 23, 2018
July 25, 2018	$0.05	August 8, 2018	August 22, 2018