Acquisition (Details) - Apollo’s Lap-Band Product Line $ in Thousands	Dec. 17, 2018 USD ($)
Transition services, supply and distribution agreements
Period for manufacturing product	2 years
Long-term Debt, Fiscal Year Maturity
Consideration payable on the first anniversary of the closing date	$ 2,000
Consideration payable on the second anniversary of the closing date	2,000
Consideration payable on the third anniversary of the closing date	3,000
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash consideration	17,000
Total transaction cost
Asset purchase consideration paid at closing	10,000
Aggregate asset purchase consideration payable	7,000
Adjustment to net present value of asset purchase consideration payable	(703)
Present Value of Asset Purchase Consideration	16,297
Asset purchase transaction costs	500
Total transaction cost	16,797
Fair values
Inventory	994
Fixed assets	486
Total transaction cost	16,797
Fair Value, Measurements, Nonrecurring | Developed technology
Fair values
Intangible assets	14,362
Fair Value, Measurements, Nonrecurring | Trademarks
Fair values
Intangible assets	$ 955