Concentration of Credit Risk and Significant Customers - (Details)	3 Months Ended			9 Months Ended
	Mar. 31, 2016	Jun. 30, 2015	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Minimum [Member]
Concentration Risk
Terms of credit sales, (in days)				30 days
Maximum [Member]
Concentration Risk
Terms of credit sales, (in days)				60 days
Customer A | Sales Revenue, Goods, Net | Customer Concentration Risk
Concentration Risk
Customers greater than 10% of total	24.80%		25.10%	24.00%	24.50%
Customer A | Accounts Receivable | Customer Concentration Risk
Concentration Risk
Customers greater than 10% of total	28.40%	29.40%
Customer B | Sales Revenue, Goods, Net | Customer Concentration Risk
Concentration Risk
Customers greater than 10% of total	36.00%		32.50%	37.20%	36.60%
Customer B | Accounts Receivable | Customer Concentration Risk
Concentration Risk
Customers greater than 10% of total	23.50%	27.70%
Customer C | Sales Revenue, Goods, Net | Customer Concentration Risk
Concentration Risk
Customers greater than 10% of total	12.90%		12.30%	12.70%	12.20%
Customer C | Accounts Receivable | Customer Concentration Risk
Concentration Risk
Customers greater than 10% of total	21.80%	14.70%