Supplemental Information on Oil and Gas Operations (Details) - Schedule of operating expenses related to plant maintenance

v3.21.2

Supplemental Information on Oil and Gas Operations (Details) - Schedule of operating expenses related to plant maintenance - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2020	May 31, 2019	May 31, 2020	May 31, 2019
Schedule of operating expenses related to plant maintenance [Abstract]
Advanced royalty payments applied or expired	$ 121	$ 92	$ 325	$ 199
Production and maintenance costs	152	664	1,558	730
Total	$ 273	$ 756	$ 1,883	$ 929