3. CONTRACTS IN PROGRESS (Details - Contracts in progress) - USD ($)	Aug. 31, 2018	Aug. 31, 2017
Contractors [Abstract]
Revenues in excess of billings	$ 1,985,597	$ 1,481,082
Billings in excess of revenues	(384,603)	(216,958)
Revenues over billings on uncompleted contracts	$ 1,600,993	$ 1,264,124