Income Taxes (Details) - USD ($)	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Provision For Income Taxes Continuing And Discontinuing Operations	$ 2,291,000	$ 2,433,000
Current Income Taxes [Member]
Provision For Income Taxes Continuing And Discontinuing Operations	2,229,000	2,616,000
Current Income Taxes [Member] | Domestic Tax Authority [Member]
Provision For Income Taxes Continuing And Discontinuing Operations	2,142,000	2,226,000
Current Income Taxes [Member] | State and Local Jurisdiction [Member]
Provision For Income Taxes Continuing And Discontinuing Operations	119,000	362,000
Current Income Taxes [Member] | Foreign Tax Authority [Member]
Provision For Income Taxes Continuing And Discontinuing Operations	(32,000)	28,000
Deferred Income Taxes [Member]
Provision For Income Taxes Continuing And Discontinuing Operations	62,000	(183,000)
Deferred Income Taxes [Member] | Domestic Tax Authority [Member]
Provision For Income Taxes Continuing And Discontinuing Operations	(88,000)	(273,000)
Deferred Income Taxes [Member] | State and Local Jurisdiction [Member]
Provision For Income Taxes Continuing And Discontinuing Operations	32,000	90,000
Deferred Income Taxes [Member] | Foreign Tax Authority [Member]
Provision For Income Taxes Continuing And Discontinuing Operations	$ 118,000	$ 0