XML 11 R1.htm IDEA: XBRL DOCUMENT v3.20.2
Document and Entity Information - shares
 6 Months Ended
Jun. 30, 2020
Jul. 28, 2020
Document And Entity Information    
Entity Registrant Name SOLITARIO ZINC CORP.  
Entity Central Index Key 0000917225  
Document Type 10-Q  
Document Period End Date Jun. 30, 2020  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Is Entity's Reporting Status Current? Yes  
Is Entity a Shell Company? false  
Is Entity Emerging Growth Company? false  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Common Stock, Shares Outstanding   58,111,966
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2020  
Entity Interactive Data Current Yes  
Entity Incorporation State Country Code CO  
Entity File Number 001-39278