Inventories (Tables)

12 Months Ended

Aug. 31, 2012

Inventories [Abstract]

Schedule Of Inventories

	August 31,
$ in thousands	2012		2011
Inventory:
FIFO inventory	$	23,082	$	22,614
LIFO reserves		(6,912)		(7,178)
LIFO inventory		16,170		15,436
Weighted average inventory		20,918		20,848
Other FIFO inventory		17,433		15,407
Obsolescence reserve		(1,648)		(2,167)
Total inventories	$	52,873	$	49,524

Schedule Of Estimated Percentage Distribution

	August 31,
	2012		2011
Raw materials		16%		14%
Work in process		7%		8%
Finished goods and purchased parts		77%		78%