Segment Information (Consolidated Revenues From Continuing Operations By Country) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 31, 2014	Aug. 31, 2013	Aug. 31, 2012
Segment Reporting Information [Line Items]
Sales	$ 205,165	$ 190,924	$ 170,456
United States [Member]
Segment Reporting Information [Line Items]
Sales	153,999	138,599	121,328
Japan [Member]
Segment Reporting Information [Line Items]
Sales	16,652	19,594	19,440
Canada [Member]
Segment Reporting Information [Line Items]
Sales	8,780	9,866	8,574
United Kingdom [Member]
Segment Reporting Information [Line Items]
Sales	6,899	5,428	5,341
Australia [Member]
Segment Reporting Information [Line Items]
Sales	4,623	4,536	3,992
China/Singapore [Member]
Segment Reporting Information [Line Items]
Sales	3,322	2,889	2,512
Mexico/Central America [Member]
Segment Reporting Information [Line Items]
Sales	923	955	913
Thailand [Member]
Segment Reporting Information [Line Items]
Sales	860	860	693
Denmark/Scandinavia [Member]
Segment Reporting Information [Line Items]
Sales	831	693	660
Indonesia [Member]
Segment Reporting Information [Line Items]
Sales	761	778	705
Korea [Member]
Segment Reporting Information [Line Items]
Sales	725	469	607
India [Member]
Segment Reporting Information [Line Items]
Sales	684	559	576
Central/Eastern Europe [Member]
Segment Reporting Information [Line Items]
Sales	697	551	548
Brazil [Member]
Segment Reporting Information [Line Items]
Sales	595	495	509
Middle East [Member]
Segment Reporting Information [Line Items]
Sales	594	472	444
Malaysia [Member]
Segment Reporting Information [Line Items]
Sales	405	427	458
Others [Member]
Segment Reporting Information [Line Items]
Sales	$ 3,815	$ 3,753	$ 3,156