Inventories (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Schedule of inventory [Abstract]
Raw materials and work in progress	$ 2,440	$ 3,706
Finished goods	377	422
Inventories, net	2,817	4,128
Inventory [Line Items]
Excess and obsolete inventories write off	0	$ 4,818
Reserve for obsolete inventory	257
MelaFind Systems [Member]
Inventory [Line Items]
Excess and obsolete inventories write off	5,688
Reserve for obsolete inventory	$ 870