Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Name:	us-gaap_GoodwillImpairmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Goodwill and Intangible Assets (Details)	3 Months Ended	12 Months Ended
Goodwill and Intangible Assets (Details)	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($) ReportingUnit	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Goodwill and intangible assets
Number of reporting units \| ReportingUnit		2
Goodwill impairment charges		$ 7,629,000	$ 0	$ 0
Amortization expense		$ 2,300,000	$ 2,300,000	$ 2,200,000
miraDry
Goodwill and intangible assets
Goodwill impairment charges	$ 7,600,000