Segment Reporting (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Nov. 30, 2012	Nov. 30, 2011
Revenues	$ 141	$ 311
Cost of revenues	95	193
Gross profit	46	118
Selling, general and administrative expenses	7,260	6,530
Real Estate Rental Operations [Member]
Revenues	141	311
Cost of revenues	95	193
Gross profit	46	118
Selling, general and administrative expenses	61	92
Distribution Operations [Member]
Revenues	29,119	26,150
Cost of revenues	21,064	18,878
Gross profit	8,055	7,272
Selling, general and administrative expenses	7,199	6,438
Segment Operation [Member]
Revenues	29,260	26,461
Cost of revenues	21,159	19,071
Gross profit	8,101	7,390
Selling, general and administrative expenses	$ 7,260	$ 6,530