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Business and Significant Accounting Policies (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Jul. 12, 2017	Jun. 29, 2017	Apr. 26, 2017
Accounting Policies [Abstract]
Shares issued for all issued and outstanding stock of Zazu			19,788,177
Stock options issued to Zazu option holders at 0.3572 shares Solitario for 1 share Zazu			1,782,428
Percentage of Solitario shareholders voted for issuance of shares pursuant to Arrangement Agreement				98.27%
Zazu total purchase price	$ 16,227	$ 16,227
Percentage ownership in Florida Canyon zinc project Peru	39.00%
Percentage ownership in Lik zinc deposit	50.00%
Interim debt financing through secured convertible debenture with interest rate of 5% per annum apr 26 17					$ 1,500
Per share price of Debenture					$ 0.22
Short term investments in U.S. Treasuries	$ 10,723	10,723
Bank Certificates of Deposit with maximum value of $250,000 each	$ 1,248	$ 1,248
Potentially dilutive shares	1,928,428	1,928,428

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The capitalized costs incurred during the period (excluded from amortization) to purchase, lease or otherwise acquire an unproved property, including costs of lease bonuses and options to purchase or lease properties, the portion of costs applicable to minerals when land including mineral rights is purchased in fee, brokers' fees, recording fees, legal costs, and other costs incurred in acquiring properties.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-10(c)(7)(ii))
-URI http://asc.fasb.org/extlink&oid=82851474&loc=d3e511914-122862

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The price per share of the conversion feature embedded in the debt instrument.

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-SubTopic 20
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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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-Name Accounting Standards Codification
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Debt (bills, notes or bonds) that are issued by the government of the United States which are 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. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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