Inventory - Additional Information (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Inventory [Line Items]
Inventory, Gross	$ 4,810,411	$ 5,956,205
Reserve for inventory	863,559	325,000	[1]
MelaFind Systems [Member]
Inventory [Line Items]
Inventory, Gross	4,277,581	5,401,866
Inventory Repairs [Member]
Inventory [Line Items]
Reserve for inventory	$ 538,559

[1] Derived from the audited balance sheet as of December 31, 2013