Fair value portion of investments accounted under the equity method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 25
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=66022186&loc=d3e32014-111567

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

Fair Value of Financial Instruments and Fair Value Measurements (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Level 1 [Member]
Equity investments, at fair value	$ 264,021	$ 215,528
Level 2 [Member]
Equity investments, at fair value
Level 3 [Member]
Equity investments, at fair value