Summary of Significant Accounting Policies (Details 4)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Customers
Concentration risk
Concentration risk customers	4
Net sales | Products | Product 1
Concentration risk
Concentration risk (as a percent)	41.00%	44.00%	42.00%
Net sales | Products | Product 2
Concentration risk
Concentration risk (as a percent)	9.00%	12.00%	17.00%
Net sales | Customers | Customer A
Concentration risk
Concentration risk (as a percent)	18.00%	17.00%	26.00%
Net sales | Customers | Customer B
Concentration risk
Concentration risk (as a percent)	12.00%	6.00%	7.00%
Net sales | Customers | Customer C
Concentration risk
Concentration risk (as a percent)	11.00%	10.00%	11.00%
Accounts receivable | Customers | Four customers
Concentration risk
Concentration risk (as a percent)	66.00%	69.00%