Selected Consolidated Financial Statement Information - Accrued Expenses (Details) $ in Thousands	3 Months Ended		9 Months Ended	12 Months Ended
	Mar. 31, 2017 USD ($)	Sep. 30, 2016 USD ($)	Mar. 31, 2017 USD ($)	Jun. 30, 2016 USD ($)
Quarterly Financial Information Disclosure [Abstract]
Units Associated with Recall	900		900
Accrued Expenses
Salaries and bonus	$ 5,890		$ 5,890	$ 4,305
Commissions	7,590		7,590	7,788
Accrued vacation	3,430		3,430	3,498
Accrued excise, sales and other taxes	3,507		3,507	3,372
Accrued litigation	2,600		2,600	0
Legal Settlement, Current	1,806		1,806	3,872
Warranty reserve	1,545		1,545	145
Clinical studies	565		565	1,757
Restructuring	307		307	1,337
Other accrued expenses	2,597		2,597	919
Total Accrued expenses	29,837		29,837	26,993
Litigation Settlement, Amount				$ 8,000
Payments for Legal Settlements		$ 3,000
Settlement Payable in Installments	5,000		$ 5,000
Litigation Settlement Interest, Percentage			1.80%
Litigation Settlement, Number of Quarterly Installment Payment			11
Inventory Recall Expense	1,535
Recall Expenses, Recorded in Cost of Sales	1,378
Recall Expense, Consulting	60
Recall Expense, Inventory Reserve	$ 97