Acquisition (Details) - USD ($) $ in Thousands		3 Months Ended
	Aug. 05, 2019	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Consideration Transferred		$ 1,346
Payments to Acquire Intangible Assets		325	$ 79
Finite-Lived Intangible Assets, Gross		22,208		$ 6,093
WIRION Embolic Protection System
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Consideration Transferred	$ 16,687
Payments to Acquire Intangible Assets	$ 5,600
Stock Issued During Period, Shares, New Issues	31,493
Other Significant Noncash Transaction, Value of Consideration Received	$ 1,346
Additional Consideration, Pending Disbursement	10,000
Potential Milestone Payment		3
Milestone Payment Target, Increment in Net Revenues		10
Milestone payment target, excess threshold		$ 30
Period for milestone payments, successful manufacture transfer		36 months
Developed Technology Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite-Lived Intangible Assets, Gross		$ 15,624		0
Developed Technology Rights | WIRION Embolic Protection System
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite-Lived Intangible Assets, Gross	15,642
Trade Names
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite-Lived Intangible Assets, Gross		$ 760		$ 0
Trade Names | WIRION Embolic Protection System
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite-Lived Intangible Assets, Gross	$ 760