Income Taxes (Schedule Of Federal Deferred Tas Assets And Deferred Tax Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Net operating loss carryforwards	$ 2,134	$ 2,356
Accounts payable and accrued expenses	4,623	2,132
Non-cash compensation	6,035	4,167
Goodwill and intangibles amortization	771	1,123
Allowance for doubtful accounts	504	267
Net deferred tax assets	14,067	10,045
Plant and equipment	(1,289)	(2,096)
Total deferred tax liabilities	(2,398)	(3,246)
Net deferred assets	11,669	6,799
Amadesa [Member]
Intangible related to acquisition	(474)
Engage [Member]
Intangible related to acquisition	(494)	(912)
LookIO [Member]
Intangible related to acquisition	$ (141)	$ (238)