XML 52 R41.htm IDEA: XBRL DOCUMENT v3.19.2
Note 8 - Significant Customers / Concentration / Disaggregated Revenue - Net Sales by Geographical Region (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Net Sales $ 9,297,186 $ 3,598,028 $ 16,718,384 $ 5,989,410
Reportable Geographical Components [Member] | US And Canada [Member]        
Net Sales 255,642 260,525 688,229 369,750
Reportable Geographical Components [Member] | AUSTRALIA        
Net Sales 153,401 82,490 215,514 282,793
Reportable Geographical Components [Member] | South America [Member]        
Net Sales 24,248 27,676
Reportable Geographical Components [Member] | Asia [Member]        
Net Sales 933,693 111,015 2,172,807 928,616
Reportable Geographical Components [Member] | Europe [Member]        
Net Sales $ 7,954,450 $ 3,119,750 $ 13,641,834 $ 4,380,575