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Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Assets
Short-term investments	$ 6,829	$ 6,829
Marketable equity securities	755	1,039
Vendetta Warrants	13	21
Liabilities
Kinross calls	9
Level 1
Assets
Short-term investments	6,829	6,829
Marketable equity securities	755	1,039
Vendetta Warrants	0	0
Liabilities
Kinross calls	9
Level 2
Assets
Short-term investments	0	0
Marketable equity securities	0	0
Vendetta Warrants	13	21
Liabilities
Kinross calls	0
Level 3
Assets
Short-term investments	0	0
Marketable equity securities	0	0
Vendetta Warrants	0	$ 0
Liabilities
Kinross calls	$ 0

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The fair value as of the balance sheet date of firm holdings in corporate stocks (common and preferred), stock options, warrants and any other financial instrument which represents, or provides the ability to obtain, ownership rights in a corporation. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings.

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Amount of investment in marketable security.

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