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Note 3 - Derivatives (Tables)
12 Months Ended
Dec. 31, 2012
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]
   
Cash Flow Hedging Relationships
for the Year Ended December 31,
 
   
2012
   
2011
   
2010
 
Interest rate swap agreements:
                 
Liability at beginning of period
  $ -     $ -     $ (6,344 )
                         
Effective portion of losses recognized in other comprehensive loss     -       -       (5,936 )
                         
Effective portion of gains recorded in accumulated other comprehensive loss and reclassified into interest expense
    -       -       12,280  
                         
Liability at end of period
  $ -     $ -     $ -