Annual report pursuant to Section 13 and 15(d)

Note 21 - Segments (Details Textual)

v3.8.0.1
Note 21 - Segments (Details Textual)
 12 Months Ended
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Revenues $ 1,810,437 $ 4,971,634 $ 3,013,361
Number of Primary Types of Products Sold 2    
Depreciation, Depletion and Amortization, Nonproduction [1] $ 240,166 453,549 522,196
Research and Development Expense [Member]      
Depreciation, Depletion and Amortization, Nonproduction 0 0 10,617
Selling, General and Administrative Expenses [Member]      
Depreciation, Depletion and Amortization, Nonproduction 240,166 $ 397,232 $ 460,839
Intersegment Eliminations [Member]      
Revenues $ 0    
[1] Depreciation and amortization is reflected in research and development ($0, $0 and $10,617 for the years ended December 31, 2017, 2016 and 2015, respectively), and selling, general and administrative expenses ($240,166, $397,232 and $460,839 for the years ended December 31, 2017, 2016 and 2015, respectively).