Segment Reporting - Summary of Segment Performance (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information [Line Items]
Net revenue	$ 1,005	$ 900	$ 2,123	$ 2,274
Cost of revenue	1,488	1,167	2,861	2,751
Gross profit (loss)	(483)	(267)	(738)	(477)
Vascular [Member]
Segment Reporting Information [Line Items]
Net revenue	9	78	13	191
Cost of revenue	466	417	865	1,078
Gross profit (loss)	(457)	(339)	(852)	(887)
Dermatology [Member]
Segment Reporting Information [Line Items]
Net revenue	996	822	2,110	2,083
Cost of revenue	1,022	750	1,996	1,673
Gross profit (loss)	$ (26)	$ 72	$ 114	$ 410