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Note 17 - Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 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]
   
December 31, 2012
 
   
Carrying Value
   
Fair Value
 
             
Notes payable
  $ 269,660,531     $ 171,841,824