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Note 6 - Long-term Debt (Tables)
12 Months Ended
Dec. 31, 2015
Notes Tables  
Schedule of Maturities of Long-term Debt [Table Text Block]
Year ending December 31,
 
   
2016
$1,011,491
2017
376,527
2018 47,638
2019 38,791
2020
21,005
 
$1,495,452