Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Fair value of the entity's equity.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Number of shares of stock issued during the period pursuant to acquisitions.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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Recapitalization on November 4, 2016 (Details Textual) $ in Millions		2 Months Ended
	Aug. 11, 2016	Dec. 31, 2016 shares	Jun. 30, 2018 USD ($) shares	Apr. 30, 2018 shares	Dec. 31, 2017 shares	Nov. 04, 2016 shares
Common Stock, Shares, Issued			30,975,206	736,852	28,516,009
Common Stock, Shares, Outstanding			30,975,206		28,516,009
Stockholders' Equity Note, Stock Split, Conversion Ratio	4.13607
TheMaven Network, Inc [Member]
Stock Issued During Period, Shares, Acquisitions		12,517,152
Stockholders' Equity Note, Stock Split, Conversion Ratio		4.13607
Equity, Fair Value Disclosure \| $			$ 2.5
Equity Method Investment, Ownership Percentage			56.70%
Integrated Surgical System Inc [Member]
Common Stock, Shares, Issued						9,530,379
Common Stock, Shares, Outstanding		22,047,531				9,530,379