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Investment in Hoth Therapeutics, Inc (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
Feb. 15, 2019
Jun. 30, 2017
Dec. 31, 2018
IPO [Member] | Common Stock [Member] | Subsequent Event [Member]      
Sale of stock, number of shares issue 1,250,000    
Sale of stock, price per share (in dollars per share) $ 5.60    
Hoth Therapeutics, Inc [Member] | Securities Purchase Agreement [Member]      
Share price (in dollars per share)     $ 0.0001
Number of common shares issued   1,700,000  
Purchase price   $ 675