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Note 3 - Company Operations (Details Textual)
3 Months Ended 9 Months Ended
Sep. 30, 2017
USD ($)
Sep. 30, 2016
USD ($)
Sep. 30, 2017
USD ($)
Sep. 30, 2016
USD ($)
Number of Operating Segments     3  
Revenues $ 197,323 $ 210,043 $ 793,099 $ 637,999
Intersegment Eliminations [Member]        
Revenues     $ 0