Inventories (Details Textual) - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Inventories (Textual)
Obsolete inventory	$ 3,306,861	$ 944,567

Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

No definition available.