Acquisition (Details) - USD ($) $ in Thousands		3 Months Ended
	Aug. 05, 2019	Sep. 30, 2019	Sep. 30, 2020	Jun. 30, 2020
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
Finite-Lived Intangible Assets, Gross			$ 18,266	$ 18,266
Developed Technology Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite-Lived Intangible Assets, Gross			15,624	15,624
Trade Names
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite-Lived Intangible Assets, Gross			$ 760	$ 760
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 amount	3,000
Net revenue increment to achieve milestone payments	10,000
Net revenue threshold to exceed before milestone payments can be achieved	30,000
WIRION Embolic Protection System | Developed Technology Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite-Lived Intangible Assets, Gross	15,624
WIRION Embolic Protection System | Trade Names
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite-Lived Intangible Assets, Gross	$ 760