Commitments and Contingencies (Details Textual) - USD ($)	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Operating Leases, Rent Expense	$ 2,202,000	$ 2,142,000
Lease Expiration Date	Sep. 30, 2022
Minimum [Member]
Monthly Operating Lease Rental Payment	$ 1,000
Maximum [Member]
Monthly Operating Lease Rental Payment	$ 32,000