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Note 8 - Inventories, Net - Inventories (Details) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Raw materials $ 1,544,949 $ 1,994,741
Work in Process 3,110,296 3,052,224
Finished Goods 9,766,060 12,300,010
In Transit 99,923 480,716
Allowance for excess quantities (561,729) (439,057)
Total inventories $ 13,959,499 $ 17,388,634