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Note 7 - Supplementary Income Statement Information
12 Months Ended
Dec. 31, 2016
Notes to Financial Statements  
Supplemental Income Statement Information [Text Block]
Note
7.
     Supplementary Income Statement Information
 
Taxes, other than income taxes, of
$145,245
and
$159,464,
were charged to expense during
2016
and
2015,
respectively.