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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