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Note 3 - Accounts Receivable (Tables)
12 Months Ended
Dec. 31, 2014
Receivables [Abstract]  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

December 31,

 

2014

   

2013

 
                 

Billed receivables

  $ 6,491,814     $ 4,417,254  

Less: allowance for doubtful accounts

    (25,000 )     (25,000 )
    $ 6,466,814     $ 4,392,254