Goodwill and Intangible Assets (Details 2) (USD $)	3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Intangible Assets
Gross Amount	$ 12,407,000	$ 12,407,000
Accumulated Amortization	5,833,000	5,309,000
Net Amount	6,574,000	7,098,000
Patent, trademarks & URLs
Intangible Assets
Weighted Average Estimated Useful Lives	4 years
Gross Amount	5,808,000	5,808,000
Accumulated Amortization	1,713,000	1,436,000
Net Amount	4,095,000	4,372,000
Trademarks
Intangible Assets
Amount included in the total for Patents, trademarks and URLs	2,900,000	2,900,000
Customer relationships
Intangible Assets
Weighted Average Estimated Useful Lives	7 years
Gross Amount	6,349,000	6,349,000
Accumulated Amortization	3,944,000	3,713,000
Net Amount	2,405,000	2,636,000
Non-compete agreements
Intangible Assets
Weighted Average Estimated Useful Lives	4 years
Gross Amount	250,000	250,000
Accumulated Amortization	176,000	160,000
Net Amount	$ 74,000	$ 90,000