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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Jan. 31, 2023
Sep. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Sep. 30, 2022
Mar. 31, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Operating Activities                  
Net loss   $ (6,016) $ (7,432) $ (27,468) $ (56,164) $ (8,906) $ (22,705) $ (71,628)  
Net income from discontinued operations       21   (7,751)  
Net loss from continuing operations             (22,705) (79,379)  
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:                  
Depreciation expense   1,200     6,000   2,387 15,888  
Amortization expense             7,111 7,111  
Stock-based compensation             3,640 2,747  
Consultant stock compensation             69 121  
Deferred income taxes   (569)     (547)   (524) (1,344)  
Impairment on fixed assets   41     28,086   418 28,836  
Amortization of operating lease asset             177 151  
Impairment on equity investment       750   750  
Loss on debt extinguishment and revaluation, net $ (476) 769     12,317   2,350 12,317  
Amortization on deferred financing costs and discount on notes             748 6,630  
Loss on sale of fixed assets   373     988   404 2,606  
Changes in operating assets and liabilities:                  
Accounts receivable             (1,552) (1,498)  
Prepaid expenses and other current assets             (484) (154)  
Other long-term assets             (307) (69)  
Accounts payable             551 884  
Deferred revenue             (453) 118  
Operating lease liabilities             (172) (148)  
Other liabilities             1,294 (306)  
Accrued liabilities             2,644 (382)  
Net cash (used in) provided by operating activities             (4,404) (5,121)  
Net cash provided by operating activities- discontinued operations             369  
Investing Activities                  
Purchases of property, plant, and equipment             (12,534) (61,867)  
Purchases of intangible assets             (49) (114)  
Proceeds from disposal on property, plant, and equipment             2,266 2,525  
Deposits and credits on equipment, net             200 6,441  
Net cash used in investing activities             (10,117) (53,015)  
Net cash provided by investing activities- discontinued operations             9,004  
Financing Activities                  
Proceeds from preferred offerings             16,658  
Proceeds from common stock securities purchase agreement offering             817  
Proceeds from notes and debt issuance             3,100 29,736  
Costs of preferred offering             (1,910)  
Costs of common stock securities purchase agreement offering             (10)  
Costs and payments of notes and short-term debt issuance             (510) (2,428)  
Cash dividend distribution on preferred stock             (3,852)  
Payments on NYDIG loans and line of credit             (350) (3,841)  
Contributions from non-controlling interest             19,706 4,293  
Proceeds from stock option exercises             153  
Proceeds from common stock warrant exercises             779  
Net cash provided by financing activities             22,753 39,588  
Increase (decrease) in cash & restricted cash-continuing operations             8,232 (18,548)  
Increase in cash & restricted cash- discontinued operations             9,373  
Cash & restricted cash – beginning of period $ 1,821   $ 1,821 1,083   $ 10,258 1,821 10,258 $ 10,258
Cash & restricted cash – end of period   $ 10,053   $ 1,821 $ 1,083   10,053 1,083 $ 1,821
Supplemental Disclosure of Cash Flow Information                  
Noncash equipment financing             4,620  
Interest paid on NYDIG loans and cash interest paid on line of credit             567 1,179  
Noncash disposal of NYDIG collateralized equipment             2,576  
Proceed receivable from sale of MTI Instruments             205  
Notes converted to common stock             2,444 2,441  
Warrant consideration in relation to promissory notes and convertible notes             1,330 14,602  
Promissory note and interest conversion to common shares             845 15,236  
Noncash note receivable from sale of equipment             240  
Noncash non-controlling interest contributions             2,746 290  
Series B preferred dividend prefunded warrant and common stock issuance             657  
Noncash activity right-of-use assets obtained in exchange for lease obligations             $ 403 $ 20