Summary of Significant Accounting Policies (Details Narrative) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Cash and cash equivalents	$ 63	$ 210	$ 197	$ 134
Realized losses marketable securities	99	93
Unrealized gains (losses) in marketable securities	(58)	72
Dividend income	33	8
Fair values of marketable securities	5,600		$ 4,000
Investment at fair value	25
Hoth Therapeutics, Inc [Member]
Investment at fair value	$ 1,020

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of operating dividend income on securities.

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Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale.

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