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Stock Based Compensation (Details Textual) (USD $)
 12 Months Ended 12 Months Ended
Dec. 31, 2012
2011 Equity and Cash Incentive Plan [Member]
Dec. 31, 2012
Restricted Stock Units (RSUs) [Member]
Dec. 31, 2012
401(k) Plan [Member]
Dec. 31, 2012
Warrant [Member]
Dec. 31, 2011
Warrant [Member]
Dec. 31, 2010
Warrant [Member]
Dec. 31, 2009
Warrant [Member]
Dec. 31, 2012
Stock Option [Member]
Dec. 31, 2011
Stock Option [Member]
Stock Based Compensation (Textual) [Abstract]                  
Authorizes the issuance of Common Shares in various forms of equity awards 600,000                
Common Shares available for awards 313,576                
Deferred compensation related to unvested restricted stock grants   $ 14,829,470              
Company contribution to the plan with respect to employees contribution     200 percent of the first six percent            
Employee's compensation contributed to the plan     6.00%            
Number of years of employment required to vest in contribution     6 years            
Stock options outstanding               0 0
Number of Warrants outstanding                6,000