3. Inventories (Details Narrative) - USD ($)	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Inventories Details Narrative Abstract
Finished goods held by customer	$ 910,900		$ 1,537,300
Provision for inventory reserves	$ 23,957	$ 0

Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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