3. REVENUE RECOGNITION (Details - Billings on Uncompleted Contracts) - USD ($)	12 Months Ended
	Aug. 31, 2019	Aug. 31, 2018
Revenue Recognition [Abstract]
Revenues earned to date on uncompleted contracts	$ 19,254,928	$ 11,794,764
Billings to date on uncompleted contracts	(16,819,818)	(10,193,771)
Revenues over billings	$ 2,435,110	$ 1,600,993