Segment Reporting - Sales By Geographic Regions (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, Net	$ 31,935	$ 30,347	$ 34,582
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales Revenue, Goods, Net	24,600,000	23,200,000	27,700,000
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales Revenue, Goods, Net	24,634	23,276	27,821
South America
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales Revenue, Goods, Net	1,441	1,847	1,529
Europe, the Middle East and Africa (EMEA)
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales Revenue, Goods, Net	4,985	4,166	4,221
Asia Pacific (APAC)
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales Revenue, Goods, Net	$ 875	$ 1,058	$ 1,011