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Commitments and Contingencies - Additional Information (Detail) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended
Jun. 10, 2022
Mar. 11, 2015
Mar. 31, 2016
Mar. 31, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Other Commitments [Line Items]                
Cash and cash equivalents           $ 10,534,828   $ 2,274,751
Working capital deficit           45,900,000    
Total assets           17,818,610   $ 8,908,887
Cash Lease Obligation           326,328    
Sale of stock, Number of shares issued in transaction 4,939,515              
Class of warrant or right, Number of securities called by warrants or rights 4,939,515              
Offering costs paid on sale of common stock $ 1,800,000              
Net proceeds received from sale of stock           16,512,375 $ 0  
Lease rent expense       $ 54,500 $ 41,000 109,000 $ 82,000  
Common Stock [Member]                
Other Commitments [Line Items]                
Net proceeds received from sale of stock $ 14,700,000              
Corporate Office Space [Member]                
Other Commitments [Line Items]                
Lease Obligation           293,220    
Right Of Use Asset           279,851    
Marine Operations [Member]                
Other Commitments [Line Items]                
Lease Obligation           107,312    
Right Of Use Asset           102,736    
Penelope Mining LLC [Member]                
Other Commitments [Line Items]                
Investment in convertible preferred stock   $ 101,000,000            
Investment agreement period   3 years            
MINOSA [Member]                
Other Commitments [Line Items]                
Amount of debt financed   $ 14,750,000            
Cash Lease Obligation           $ 10,500,000    
Maximum [Member]                
Other Commitments [Line Items]                
Consultants contingent success fees     $ 700,000