Fair Value of Financial Instruments and Fair Value Measurements (Details Textual) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Fair Value Of Financial Instruments And Fair Value Measurements (Textual)
Equity investments, at cost	$ 12,766	$ 12,766

This element represents the aggregate cost of investments accounted for under the equity method of accounting.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_EquityMethodInvestmentAggregateCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant