Commitments and Contingencies (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Commitments and Contingencies (Textual)
Outstanding trade letters of credit	$ 222,500	$ 5,147,960

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

No definition available.

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant