Income Taxes (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Taxes (Textual) [Abstract]
U.S. federal income tax rate	34.00%
Increase in valuation allowance against its deferred tax assets	$ 9,069,000	$ 8,154,000	$ 7,969,000
Net operating loss carryforwards	$ 66,000,000
Tax positions more likely than not threshold	50.00%