Income Taxes (Schedule Of Federal Deferred Tas Assets And Deferred Tax Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Net operating loss carryforwards	$ 2,356	$ 2,504
Accounts payable and accrued expenses	2,132	424
Non-cash compensation	4,167	2,582
Goodwill and intangibles amortization	1,123	1,462
Allowance for doubtful accounts	267	260
Net deferred tax assets	10,045	7,232
Plant and equipment	(2,096)	(2,061)
Total deferred tax liabilities	(3,246)	(2,061)
Net deferred assets	6,799	5,171
Engage [Member]
Intangible related to acquisition	(912)
LookIO [Member]
Intangible related to acquisition	$ (238)