9. SEGMENT AND GEOGRAPHIC REPORTING (Details - geographic) - USD ($)	3 Months Ended		9 Months Ended
	May 31, 2016	May 31, 2015	May 31, 2016	May 31, 2015
Revenues	$ 6,012,193	$ 5,942,082	$ 16,014,539	$ 14,602,464
Lancaster [Member]
Revenues	4,664,000	4,541,000	11,722,000	10,795,000
Buffalo [Member]
Revenues	1,348,000	1,401,000	4,293,000	3,807,000
North America [Member]
Revenues	3,792,000	3,640,000	9,530,000	8,836,000
North America [Member] | Lancaster [Member]
Revenues	2,444,000	2,239,000	5,237,000	5,029,000
North America [Member] | Buffalo [Member]
Revenues	1,348,000	1,401,000	4,293,000	3,807,000
Europe [Member]
Revenues	1,247,000	1,287,000	3,651,000	3,201,000
Europe [Member] | Lancaster [Member]
Revenues	1,247,000	1,287,000	3,651,000	3,201,000
Europe [Member] | Buffalo [Member]
Revenues	0	0	0	0
Asia [Member]
Revenues	973,000	1,003,000	2,833,000	2,552,000
Asia [Member] | Lancaster [Member]
Revenues	973,000	1,003,000	2,833,000	2,552,000
Asia [Member] | Buffalo [Member]
Revenues	0	0	0	0
South America [Member]
Revenues	0	12,000	1,000	13,000
South America [Member] | Lancaster [Member]
Revenues	0	12,000	1,000	13,000
South America [Member] | Buffalo [Member]
Revenues	$ 0	$ 0	$ 0	$ 0