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Parent Company Financial Statements (Unaudited) (Details 2) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Net loss | $ (47,147,000) | $ (36,659,000) | $ (39,477,000)
Stock-based compensation | 3,928,000 | 995,000 | 774,000
Depreciation | 5,448,000 | 4,894,000 | 4,434,000
Proceeds from issuance of debt | (1,134,000) | 0 | 0
Prepaid expenses | 4,849,000 | (44,000) | (147,000)
Accounts payable | (8,000) | 1,400,000 | 1,001,000
Accrued interest expense | 14,456,000 | 21,728,000 | 18,033,000
Other liabilities | 730,000 | 123,000 | 7,088,000
Net cash provided by (used in) operating activities | (20,647,000) | 2,480,000 | (2,034,000)
Net cash provided by (used in) financing activities | (22,894,000) | (17,309,000) | (8,578,000)
Proceeds from the exercise of stock options | 1,304,000 | 287,000 | 0
Proceeds from issuance of common stock in equity offering | 103,591,000 | 5,113,000 | 0
Net cash provided by financing activities | 50,704,000 | 14,775,000 | 10,085,000
Cash and cash equivalents at end of period | 7,751,000 | 592,000 | 656,000
Interest payments | 5,682,000 | 1,324,000 | 2,476,000
Income tax expense | 7,000 | 8,000 | 8,000
Issuance of equity to pay off accounts payable | 893 |  |
Parent Company Financial Statements |  |  |
Net loss | (47,147,000) | (36,659,000) | (35,716,000)
Stock-based compensation | 3,998,000 | 995,000 | 774,000
SARs Amortization | 0 | 0 | 800,000
Depreciation | 8,000 | 4,000 | 8,000
Subsidiary portion of net losses | 34,400,000 | 28,820,000 | 21,745,000
Change in fair value of SARs liability | 0 |  | (82,000)
Proceeds from issuance of debt | (421,000) | 0 | 0
Prepaid expenses | (38,000) | 38,000 | (74,000)
Accounts payable | (1,043,000) | (216,000) | 71,000
Accrued interest expense | 998,000 | 525,000 | 1,184,000
Other liabilities | 902,000 | (578,000) | 5,891,000
Other asset | 109 | 236 | (232)
Net cash provided by (used in) operating activities | (10,108,000) | (6,835,000) | (5,483,000)
Subsidiary advances, net | (95,105,000) | 1,332,000 | 6,781,000
Net cash provided by (used in) financing activities | (95,105,000) | 1,332,000 | 6,781,000
Proceeds from borrowings under secured debt facilities | 0 | 421,000 | 0
Repayments of borrowings under secured debt facilities | 0 | 0 | (1,298,000)
Proceeds from the exercise of stock options | 1,304,000 | 287,000 | 0
Proceeds from issuance of common stock in equity offering | 103,591,000 | 5,113,000 | 0
Net cash provided by financing activities | 104,895,000 | 5,821,000 | (1,298,000)
Net change in cash and cash equivalents for period | (318,000) | 318,000 | 0
Cash and cash equivalents at end of period | 318,000 | 318,000 | 0
Interest payments | 0 | 0 | 0
Income tax expense | 7,000 | 7,000 | 8,000
Fair value of warrants issued to subordinated debt holders | 1,546,000 | 181,000 | 162,000
Fair value of warrants issued for capital expenditures | 1,344,000 | 0 | 0
Exercise of stock appreciation rights added to GAFI debt | 0 | 0 | 1,050,000
Reclassification of GAFI Noncontrolling interest | 0 | 0 | 8,501,000
Operating lease liabilities arising from obtaining right of use assets | 0 | 2,632,000 | 640,000
Issuance of equity to pay off accounts payable | $ 893,000 | $ 0 | $ 0

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