Quarterly report pursuant to Section 13 or 15(d)

Accrued Warranty - Additional Information (Details)

v3.19.3
Accrued Warranty - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Product Warranty Liability [Line Items]        
Warranty expense $ 100,000 $ 30,000 $ 900,000 $ 100,000
Catheters | Product Recall        
Product Warranty Liability [Line Items]        
Warranty expense $ 26,000   $ 200,000