9. SEGMENT AND GEOGRAPHIC REPORTING (Details - geographic) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 29, 2020	Feb. 28, 2019	Feb. 29, 2020	Feb. 28, 2019
Revenues	$ 10,349,863	$ 8,471,720	$ 19,750,968	$ 16,007,623
North and South America [Member]
Revenues	6,826,000	5,338,000	13,496,000	10,260,000
North and South America [Member] | Lancaster [Member]
Revenues	2,607,000	2,075,000	5,153,000	4,187,000
North and South America [Member] | Buffalo [Member]
Revenues	2,750,000	2,292,000	5,137,000	4,357,000
North and South America [Member] | North Carolina [Member]
Revenues	1,469,000	971,000	3,206,000	1,716,000
Europe [Member]
Revenues	1,736,000	1,898,000	3,208,000	2,897,000
Europe [Member] | Lancaster [Member]
Revenues	1,610,000	1,762,000	2,757,000	2,710,000
Europe [Member] | Buffalo [Member]
Revenues	0	0	0	0
Europe [Member] | North Carolina [Member]
Revenues	126,000	136,000	451,000	187,000
Asia [Member]
Revenues	1,788,000	1,236,000	3,046,000	2,851,000
Asia [Member] | Lancaster [Member]
Revenues	1,687,000	1,171,000	2,920,000	2,476,000
Asia [Member] | Buffalo [Member]
Revenues	0	0	0	0
Asia [Member] | North Carolina [Member]
Revenues	101,000	65,000	126,000	375,000
Lancaster [Member]
Revenues	5,904,000	5,008,000	10,830,000	9,373,000
Buffalo [Member]
Revenues	2,750,000	2,292,000	5,137,000	4,357,000
North Carolina [Member]
Revenues	$ 1,696,000	$ 1,172,000	$ 3,784,000	$ 2,278,000