Business and Credit Concentration (Details) (Customer concentration risk)	9 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended			12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2012 Net sales Wholesale customer	Jun. 30, 2012 Net sales One customer	Jun. 30, 2011 Net sales One customer	Jun. 30, 2012 Net sales One customer	Jun. 30, 2011 Net sales One customer	Jun. 30, 2012 Net sales One customer Wholesale	Jun. 30, 2011 Net sales One customer Wholesale	Jun. 30, 2012 Net sales One customer Wholesale	Jun. 30, 2011 Net sales One customer Wholesale	Jun. 30, 2012 Gross accounts receivable Customer A Wholesale	Sep. 30, 2011 Gross accounts receivable Customer A Wholesale	Jun. 30, 2012 Gross accounts receivable Customer B Wholesale	Sep. 30, 2011 Gross accounts receivable Customer B Wholesale	Jun. 30, 2012 Gross accounts receivable Customer C Wholesale	Sep. 30, 2011 Gross accounts receivable Customer C Wholesale
Business and Credit Concentration
Number of customers	1
Percentage of concentration risk		13.00%	15.00%	14.00%	15.00%	21.00%	25.00%	23.00%	25.00%	16.00%	18.00%	10.00%	11.00%	12.00%	10.00%