Lease Obligations (Details) $ in Thousands	Aug. 31, 2017 USD ($)
Capital Leased Assets [Line Items]
Capital Lease Obligations	$ 1,152
Operating Leases, Future Minimum Payments Due, Next Twelve Months	1,341
Operating Leases, Future Minimum Payments, Due in Two Years	745
Operating Leases, Future Minimum Payments, Due in Three Years	294
Operating Leases, Future Minimum Payments, Due in Four Years	266
Operating Leases, Future Minimum Payments, Due in Five Years	203
Operating Leases, Future Minimum Payments, Due Thereafter	390
Operating Leases, Future Minimum Payments Due	$ 3,239