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Revenue by geographic areas (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
United States
Revenues: (in thousands)	$ 12,840sckt_Revenues1 / us-gaap_StatementGeographicalAxis = sckt_UnitedStatesMember	$ 10,918sckt_Revenues1 / us-gaap_StatementGeographicalAxis = sckt_UnitedStatesMember
Europe
Revenues: (in thousands)	2,864sckt_Revenues1 / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember	2,728sckt_Revenues1 / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember
Asia and rest of world
Revenues: (in thousands)	1,317sckt_Revenues1 / us-gaap_StatementGeographicalAxis = sckt_AsiaAndRestOfWorldMember	2,015sckt_Revenues1 / us-gaap_StatementGeographicalAxis = sckt_AsiaAndRestOfWorldMember
Total
Revenues: (in thousands)	$ 17,021sckt_Revenues1 / us-gaap_StatementGeographicalAxis = sckt_TotalMember	$ 15,661sckt_Revenues1 / us-gaap_StatementGeographicalAxis = sckt_TotalMember

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