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Cash and Cash Equivalents and Short-term Investments (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Cash and Cash Equivalents, at Carrying Value $ 11,730,000 $ 12,229,000
Financial institutions minimum net worth 1,000,000,000  
Trading securities, cost 59,000 59,000
Total short term, cost 59,000 59,000
Total short term 91,000 67,000
Cash and cash equivalent, frozen bank balance 153,000  
Trading securities    
Trading securities, cost $ 59,000 $ 59,000
Sale of Santa Maria Property | Options Agreement | Fabled Copper Corp.    
Consideration Received in Shares | shares 1,000,000  
Percentage of interest claims 100.00%  
Sale of Santa Maria Property | Options Agreement | Fabled Silver Gold Corp.    
Consideration Received in Shares | shares   200,000
Estimate of Fair Value Measurement [Member]    
Trading securities $ 91,000 $ 67,000
Total short term 91,000 67,000
Estimate of Fair Value Measurement [Member] | Trading securities    
Trading securities 91,000 67,000
Reported Value Measurement [Member]    
Trading securities 91,000 67,000
Total short term 91,000 67,000
Reported Value Measurement [Member] | Trading securities    
Trading securities $ 91,000 $ 67,000