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Note 8 - Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2012
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
   
December 31, 2011
 
   
Fair Value
   
Level 1
   
Level 2
   
Level 3
 
Liabilities
                       
Interest rate swaps
  $ 241,438     $ -     $ 241,438     $ -  
Total liabilities
  $ 241,438     $ -     $ 241,438     $ -  
Fair Value, by Balance Sheet Grouping [Table Text Block]
   
September 30, 2012
 
   
Carrying Amount
   
Fair
Value
 
Long-term debt
  $ 271,020,389     $ 181,384,007