Stockholders' Equity (Details 1) - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Total	$ 4,096,538	$ 10,001,359
Research and development [Member]
Total	1,751,311	2,131,539
General and administrative [Member]
Total	$ 2,345,227	$ 7,869,820

Amount of noncash expense for share-based payment arrangement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration