Segment Reporting - Summary of Segment Performance (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Net revenue	$ 6,257	$ 5,870
Cost of revenue	4,206	4,165
Gross profit	2,051	1,705
Vascular [Member]
Segment Reporting Information [Line Items]
Net revenue	1,552	259
Cost of revenue	1,521	193
Gross profit	31	66
Dermatology [Member]
Segment Reporting Information [Line Items]
Net revenue	4,705	5,611
Cost of revenue	2,685	3,972
Gross profit	$ 2,020	$ 1,639

The aggregate cost of goods produced and sold and services rendered during the reporting period.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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