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Note 11 - Geographical Sales (Details) - Schedule of Sales by Geographic Region - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Geographical Areas        
Sales $ 16,747,827 $ 33,222,625 $ 63,159,929 $ 70,813,414
North America [Member]        
Geographical Areas        
Sales 13,237,312 11,900,592 40,224,090 37,158,028
Europe [Member]        
Geographical Areas        
Sales 0 0 0 3,456,045
AUSTRALIA        
Geographical Areas        
Sales 548,580 17,992,912 11,075,268 24,690,606
Asia [Member]        
Geographical Areas        
Sales 2,816,233 3,329,121 11,677,878 5,020,746
HONG KONG        
Geographical Areas        
Sales 0 0 0 461,943
Other Countries [Member]        
Geographical Areas        
Sales $ 145,702 $ 0 $ 182,693 $ 26,046