Fair Value of Financial Assets and Liabilities (Tables)

3 Months Ended

Mar. 31, 2018

Schedule of fair value assets and liabilities

The following table presents the Company’s assets and liabilities that are measured at fair value at March 31, 2018 and December 31, 2017 ($ in thousands):

	Fair value measured at March 31, 2018
	Total carrying value at March 31,		Quoted prices in active markets		Significant other observable inputs		Significant unobservable inputs
	2018		(Level 1)		(Level 2)		(Level 3)
Assets
Marketable securities - mutual and exchange traded funds	$	5,574	$	—	$	5,574	$	—
Investments at fair value	$	1,045	$	—	$	—	$	1,045
Liabilities
Fair value of warrant liabilities	$	634	$	—	$	—	$	634

	Fair value measured at December 31, 2017
	Total carrying value at December 31,		Quoted prices in active markets		Significant other observable inputs		Significant unobservable inputs
	2016		(Level 1)		(Level 2)		(Level 3)
Assets
Marketable securities - mutual and exchange traded funds	$	3,998	$	—	$	3,998	$	—
Investments at fair value	$	1,020	$	—	$	—	$	1,020
Liabilities
Fair value of warrant liabilities	$	822	$	—	$	—	$	822

Schedule of fair value assumptions

A summary of quantitative information with respect to the valuation methodology and significant unobservable inputs used for the Company’s warrant liabilities that are categorized within Level 3 of the fair value hierarchy at the date of issuance and as of March 31, 2018 and December 31, 2017 is as follows:

Warrants
Date of valuation	March 31, 2018	December 31, 2017
Risk-free interest rate	2.39%	1.98%
Expected volatility	100.00% - 135.30%	100.00% - 132.21%
Expected life (in years)	2.69-2.81	2.94 - 3.06
Expected dividend yield	—	—

Schedule of fair value of the company's level 3 financial liabilities

The following table sets forth a summary of the changes in the fair value of the Company’s Level 3 financial liabilities for the three months ended March 31, 2018 and 2017 that are measured at fair value on a recurring basis ($ in thousands):

	Fair Value of Level 3 financial liabilities
	March 31, 2018			March 31, 2017
Beginning balance	$	822		$	702
Fair value adjustment of warrant liabilities		(188	)		122
Ending balance	$	634		$	824

Schedule of fair value of the Company's Level 3 financial assets

The following table sets forth a summary of the changes in the fair value of the Company’s Level 3 financial assets for the three months ended March 31, 2018 and 2017 that are measured at fair value on a recurring basis:

	Fair Value of Level 3 financial liabilities
	March 31, 2018		March 31, 2017
Beginning balance	$	1,020	$	—
Purchase of investment in TheBit Daily LLC at fair value		25		—
Ending balance	$	1,045	$	—

Hoth Therapeutics, Inc [Member]

Schedule of fair value assumptions

A summary of quantitative information with respect to the valuation methodology and significant unobservable inputs used for the Company’s valuation in Hoth that are categorized within Level 3 of the fair value hierarchy at the date of issuance and as of March 31, 2018 and December 31, 2017 is as follows:

Date of valuation	March 31, 2018			December 31, 2017
Risk-free interest rate		1.39	%		1.39	%
Expected volatility		75.00	%		75.00	%
Expected life (in years)		0.75			1.00