Recently Issued Accounting Standards (Details) - ASU 2016-01 [Member]	Dec. 31, 2017 USD ($)
Accumulated Other Comprehensive Income [Member]
New Accounting Pronouncement or Change in Accounting Principle, Retrospective Adjustments [Abstract]
Unrealized gains on equity investments, net of tax, reclassified from accumulated other comprehensive income (loss) to retained earnings	$ (18,277,328)
Retained Earnings [Member]
New Accounting Pronouncement or Change in Accounting Principle, Retrospective Adjustments [Abstract]
Unrealized gains on equity investments, net of tax, reclassified from accumulated other comprehensive income (loss) to retained earnings	$ 18,277,328

Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22580-107794

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22583-107794

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22499-107794

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