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Long Term Debt (Details) (USD $)
9 Months Ended
Sep. 30, 2012
Advances of long term debt  
Balance $ 15,000,000
Convertible [Member]
 
Advances of long term debt  
Balance 10,000,000
Acquired Sep. 12, 2006
Current interest rate 4.23%
Maturity date Sep. 12, 2016
Fixed Rate Hybrid [Member]
 
Advances of long term debt  
Balance $ 5,000,000
Acquired May 20, 2011
Current interest rate 2.69%
Maturity date May 20, 2014