Inventories (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Inventory Disclosure [Abstract]
LIFO Reserve	$ 7,977	$ 9,537
Inventories (Textual) [Abstract]
LIFO expense (income)	1,560	(1,563)
Effect of LIFO liquidation on cost of goods sold	$ 1,300