Summary of Significant Accounting Policies - Revenue (Details)	3 Months Ended
Mar. 31, 2020 USD ($)
Summary of Significant Accounting Policies
Payment period	60 days
Patient's fee	$ 99

Amount of the patient's fee basis for determining the potential amount of reimbursement for the difference between amount collected from insurance payors and said fee.

No definition available.

Name:	sens_PatientFeeBasisToDetermineCustomerReimbursement
Namespace Prefix:	sens_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration