Variably-Priced Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Variably-Priced Revenue
Revenue from variable-fee licenses	$ 5,658	$ 2,703
Revenue from sales of hardware and equipment accessories	$ 331	$ 270

It represents as a revenue recognition from sales of hardware and equipment accessories.

No definition available.

Name:	smlr_RevenueRecognitionFromSalesOfHardwareAndEquipmentAccessories
Namespace Prefix:	smlr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration