Property and Equipment, net (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 21,384			$ 21,384		$ 7,152
Accumulated depreciation and amortization	(6,923)			(6,923)		(5,191)
Property and equipment, net	14,461			14,461		1,961
Depreciation and related amortization expense	1,253		$ 489	1,891	$ 1,367
Write-down, property and equipment				920	$ 0
Lasers Placed-In-Service [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	15,154			15,154		0
MELAFind Systems [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,019			2,019		3,193
Write-down, property and equipment		$ 920
Equipment, Computer Hardware and Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,244			1,244		1,084
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,054			2,054		1,969
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 913			$ 913		$ 906