Valuation and Qualifying Accounts (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2010	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2009
Valuation and Qualifying Accounts (Textual) [Abstract]
Cost value of estimated product returns	$ 617	$ 919	$ 853	$ 249
Time for customers to return merchandise purchased in its retail stores for a full refund	30 days