Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	38,590,363	37,119,117
Common stock, shares outstanding	38,590,363	37,119,117
Series G Redeemable and Convertible Preferred Stock [Member]
Temporary equity, par value	$ 0.01	$ 0.01
Temporary equity, liquidation preference per share value	$ 1,000	$ 1,000
Temporary equity, shares authorized	1,800	1,800
Temporary equity, liquidation preference value	$ 168,496	$ 168,496
Temporary equity, shares issued	168,496	168,496
Temporary equity, shares outstanding	168,496	168,496
Temporary equity, common shares issuable upon conversion	$ 188,791	$ 188,791
Series H Convertible Preferred Stock [Member]
Temporary equity, par value	$ 0.01	$ 0.01
Temporary equity, liquidation preference per share value	$ 1,000	$ 1,000
Temporary equity, shares authorized	23,000	23,000
Temporary equity, liquidation preference value	$ 19,399,250	$ 19,399,250
Temporary equity, shares issued	19,400	19,400
Temporary equity, shares outstanding	19,400	19,400
Temporary equity, common shares issuable upon conversion	$ 58,787,879	$ 58,787,879
Series I Convertible Preferred Stock [Member]
Temporary equity, par value	$ 0.01	$ 0.01
Temporary equity, liquidation preference per share value	$ 1,000	$ 1,000
Temporary equity, shares authorized	25,800	25,800
Temporary equity, liquidation preference value	$ 23,100,000	$ 23,100,000
Temporary equity, shares issued	23,100	23,100
Temporary equity, shares outstanding	23,100	23,100
Temporary equity, common shares issuable upon conversion	$ 46,200,000	$ 46,200,000
Series J Convertible Preferred Stock [Member]
Temporary equity, par value	$ 0.01	$ 0.01
Temporary equity, liquidation preference per share value	$ 1,000	$ 1,000
Temporary equity, shares authorized	35,000	35,000
Temporary equity, liquidation preference value	$ 20,000,000	$ 20,000,000
Temporary equity, shares issued	20,000	20,000
Temporary equity, shares outstanding	20,000	20,000
Temporary equity, common shares issuable upon conversion	$ 28,571,428	$ 28,571,428

Temporary equity, common shares issuable upon conversion.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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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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The aggregate liquidation preference (or restrictions) of stock classified as temporary equity that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

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