Property And Equipment (Schedule Of Property And Equipment, Net) (Details) (USD $) In Thousands, unless otherwise specified	Feb. 28, 2014	Aug. 31, 2013
Property Plant And Equipment [Line Items]
Property and Equipment, Gross	$ 28,142	$ 26,770
Less: accumulated depreciation and amortization	(19,088)	(18,235)
Total	9,054	8,535
Machinery, Equipment and Vehicles [Member]
Property Plant And Equipment [Line Items]
Property and Equipment, Gross	12,425	12,035
Building and Building Improvements [Member]
Property Plant And Equipment [Line Items]
Property and Equipment, Gross	3,979	3,781
Computer And Office Equipment [Member]
Property Plant And Equipment [Line Items]
Property and Equipment, Gross	3,518	3,389
Software and Software Development Costs [Member]
Property Plant And Equipment [Line Items]
Property and Equipment, Gross	6,606	5,997
Furniture and Fixtures [Member]
Property Plant And Equipment [Line Items]
Property and Equipment, Gross	1,318	1,285
Land [Member]
Property Plant And Equipment [Line Items]
Property and Equipment, Gross	$ 296	$ 283

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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