Intangible Assets (Details Narrative) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 4,003,000	$ 4,181,000	$ 1,319,000
Estimated amortization expense for 2013	$ 2,800,000