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Employee Stock Compensation Plans (Details Narrative) - USD ($)
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Jun. 20, 2023
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Jun. 18, 2013
Unrecognized stock option compensation cost related to non-vested options   $ 966,000   $ 966,000      
Stock-based compensation expense   125,000 $ 58,000 $ 540,000 $ 184,000    
2023 Plan [Member]              
Option exercise price       $ 0.85      
Options granted       2,125,000      
Expected life years       5 years      
Expected volatility       71.50%      
Options vesting description       vest 25% on the date of grant and 25% on each anniversary date for the next three years      
Risk free interest rate       4.30%      
Grant date fair value       $ 1,120,000      
Common stock, capital shares reserved for future issuance 5,000,000            
Intrinsic value   $ 10,000   $ 10,000      
Options, vested and exercisable   2,175,000   2,175,000   50,000  
Vested and exercisable shares to acquire shares of common stock   543,750   543,750   12,500  
Options, vested and exercisable exercise price, Minimum   $ 0.51   $ 0.51      
Options, vested and exercisable exercise price, Maximum   0.85   $ 0.85      
Average remaining contractual life of Solitario's outstanding options 10 years     4 years 8 months 1 day      
2013 Plan [Member]              
Common stock, capital shares reserved for future issuance             5,750,000
Options exercise price, Minimum   0.20 $ 0.28 $ 0.20 $ 0.28    
Options exercise price, Maximum   $ 0.28 $ 0.31 $ 0.28 $ 0.31    
2013 Plan [Member] | Stock Option [Member]              
Options granted   200,000 145,000 250,000 195,000    
Stock option exercised in period, shares       3,173,500   3,778,500  
Intrinsic value   $ 718,000   $ 718,000      
Proceeds from stock options exercised   $ 40,000 $ 45,000 $ 54,000 $ 59,000    
Options, vested and exercisable   2,171,000   2,171,000   2,563,500  
Options, vested and exercisable price per share amount   $ 0.20   $ 0.20   $ 0.69  
Aggregate intrinsic value   $ 132,000 $ 37,000 $ 144,000 $ 52,000    
Average remaining contractual life of Solitario's outstanding options       2 years 1 month 2 days