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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
CASH FLOW FROM OPERATING ACTIVITIES              
Net loss $ (5,504,589) $ (5,681,742) $ (14,090,597) $ (6,547,023) $ (11,186,331) $ (20,637,620)  
Adjustments to reconcile net loss to net cash used in operating activities:              
Depreciation         335,473 282,907  
Amortization of finance leases         23,652 259,904  
Amortization on discount associated with finance leases         212,649 0  
Amortization of debt discount and other debt-related items         479,065 86,100  
Amortization of intangibles         1,000,902 1,110,970  
Accretion of reclamation liability         186,107 185,919  
Issuance of common stock in lieu of payment of interest         107,507 0  
Gain on sale of equipment 0   0   (178,193) 0  
Loss on conversion of debt (32,800)   0   237,656 0  
Employee and director share based compensation         172,616 222,060  
Change in fair value of derivative instruments         (2,263,212) 5,125,000  
Change in fair value of investments         765,000 33,440  
Loss on sale of equity securities         0 518,737  
Share of net loss of equity-method investments         806,264 578,819  
Other         (24,605) 24,493  
Changes in operating assets and liabilities:              
Prepaid expenses         (79,391) (31,320)  
Deposits - asset         289,485 75,300  
Other assets         78,976 78,210  
Accounts payable         213,124 717,607  
Accrued expenses, other liabilities and deposits         720,226 127,672  
Deferred gain         1,425,000 0  
Net cash provided by (used in) operating activities         (6,678,030) (7,714,703)  
CASH FLOW FROM INVESTING ACTIVITIES:              
Proceeds received associated with the agreement to sell the Facility         15,000,000    
Proceeds from repayments         0 1,300,000  
Acquisition of intangible         0 (500,000)  
Additions to construction in progress         0 (180,522)  
Proceeds from sale of equity securities         0 933,129  
Purchase of mineral and property, plant and equipment         (816,071) (587,002)  
Other         (47,288) 5,336  
Net cash provided by (used in) investing activities         3,701,641 516,145  
CASH FLOWS FROM FINANCING ACTIVITIES:              
Proceeds from the issuance of common stock         2,650,000 5,460,000  
Payments on finance leases         (352,050) (63,626)  
Capital contributed to LINICO from AQMS         0 500,000  
Common stock issuance costs         (257,620) (283,000)  
Other         0 18,311  
Net cash provided by financing activities         2,040,330 5,631,685  
Net increase (decrease) in cash and cash equivalents         (936,059) (1,566,873)  
Cash and cash equivalents at beginning of period   $ 2,521,772   $ 5,912,188 2,521,772 5,912,188 $ 5,912,188
Cash and cash equivalents at end of period $ 1,585,713   $ 4,345,315   1,585,713 4,345,315 $ 2,521,772
NON-CASH INVESTING AND FINANCING ACTIVITIES:              
Issuance of common shares for debt conversion and accrued interest         3,331,656 0  
Return of common stock in connection with conversion of debt and accrued interest         (121,193) 0  
Investment shares received on sale of Facility         9,365,000 0  
Return of investment shares in lieu of escrowed funds         (1,500,000) 0  
Issuance of common shares for due diligence and commitment fees         350,000 840,000  
Common stock received in the rescission of the LPB transaction         0 5,110,000  
M C U Philippines Inc              
Adjustments to reconcile net loss to net cash used in operating activities:              
Impairment of note receivable and investments         0 733,731  
MCU Philippines, Inc And Mercury Clean Up LLC              
Adjustments to reconcile net loss to net cash used in operating activities:              
Impairment of note receivable and investments         0 2,455,333  
CASH FLOW FROM INVESTING ACTIVITIES:              
Proceeds from repayments         0 895,204  
FLUX Photon Corporation              
Adjustments to reconcile net loss to net cash used in operating activities:              
Impairment of note receivable and investments         0 338,035  
Quantum Generative Materials LLC              
CASH FLOW FROM INVESTING ACTIVITIES:              
Payments to acquire Investments         0 (750,000)  
Payments on contractual commitments associated with derivatives         (3,500,000) 0  
Sierra Springs Opportunity Fund, Inc., at cost              
CASH FLOW FROM INVESTING ACTIVITIES:              
Proceeds from repayments         935,000 1,300,000  
Advances to Sierra Springs Opportunity Fund, Inc.         (935,000) (1,300,000)  
Solid Carbon Products              
CASH FLOW FROM INVESTING ACTIVITIES:              
Proceeds received associated with the agreement to sell the Facility         21,000,000 0  
Tonogold Resources, Inc.              
CASH FLOW FROM INVESTING ACTIVITIES:              
Proceeds from Tonogold option agreement         0 750,000  
Haywood              
CASH FLOW FROM INVESTING ACTIVITIES:              
Payments to acquire Investments         0 (50,000)  
NON-CASH INVESTING AND FINANCING ACTIVITIES:              
Haywood land lease and acquisition         0 2,050,000  
Issuance of common shares for Haywood land lease and acquisition         0 245,000  
Comstock Mining LLC              
NON-CASH INVESTING AND FINANCING ACTIVITIES:              
Tonogold note receivable exchanged for option         0 (6,650,000)  
Aqua Metals Inc              
CASH FLOW FROM INVESTING ACTIVITIES:              
Payments to acquire Investments         $ (12,000,000) $ 0