XML 14 R1.htm IDEA: XBRL DOCUMENT v3.8.0.1
Document and Entity Information - shares
 9 Months Ended
Sep. 30, 2017
Nov. 08, 2017
Document And Entity Information    
Entity Registrant Name SOLITARIO ZINC CORP.  
Entity Central Index Key 0000917225  
Document Type 10-Q  
Document Period End Date Sep. 30, 2017  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Is Entity a Well-known Seasoned Issuer? No  
Is Entity a Voluntary Filer? Yes  
Is Entity's Reporting Status Current? Yes  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   58,443,066
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2017