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Note 2 - Notes Payable and Long-term Debt (Tables)
3 Months Ended
Mar. 31, 2019
Notes Tables  
Schedule of Debt [Table Text Block]
   
201
9
   
201
8
 
Business Loan Agreement with BOKF – collateralized by real estate; payable as follows:
               
Line of Credit Note, as amended, in the maximum principal amount of $15,000,000 with features as more fully described above – interest due monthly at LIBOR plus 1.5%; matures September 18, 2023
  $
-
    $
8,968,018
 
                 
Line of Credit Note, as amended, in the maximum principal amount of $6,000,000 with revolving features as more fully described above – interest due monthly at LIBOR plus 1.5%; matures September 18, 2020
   
-
     
-
 
    $
-
    $
8,968,018
 
Less current maturities
   
-
     
747,335
 
    $
-
    $
8,220,683