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Note 7 - Long-term Debt (Tables)
6 Months Ended
Jun. 30, 2015
Notes Tables  
Schedule of Maturities of Long-term Debt [Table Text Block]
Twelve months ending June 30,
         
2016
  $ $1,004,320    
2017
    810,144    
2018
    36,369    
2019
    19,946    
Thereafter
    4,007    
    $ $1,874,786