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CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)
 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Operating activities:    
Net loss $ (46,266,000) $ (22,077,000)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:    
Share-based compensation 1,401,000 826,000
Depreciation 4,106,000 3,515,000
Debt related fees and amortization expense 3,045,000 2,578,000
Intangibles and other amortization expense 35,000 36,000
Accretion and other expenses of Series A preferred units 7,928,000 4,087,000
Gain on debt extinguishment (1,134,000) 0
Deferred tax benefit 0 (263,000)
Provision for bad debts 144,000 647,000
Changes in operating assets and liabilities:    
Accounts receivable 50,000 (1,902,000)
Inventories (902,000) 1,542,000
Prepaid expenses (2,847,000) 66,000
Other assets 2,475,000 1,684,000
Accounts payable (4,624,000) 330,000
Accrued interest expense and fees 9,256,000 16,011,000
Other liabilities 7,340,000 (24,000)
Net cash (used in) provided by operating activities (19,993,000) 7,056,000
Investing activities:    
Capital expenditures (18,771,000) (14,921,000)
Grant proceeds received for capital expenditures 1,224,000 0
Note receivable 0 (3,687,000)
Net cash used in investing activities (17,547,000) (18,608,000)
Financing activities:    
Proceeds from borrowings 0 12,135,000
Repayments of borrowings (53,523,000) (11,792,000)
TEC debt renewal and waiver fee payments (1,008,000) (300,000)
Grant proceeds received for capital expenditures 115 256
Payments on finance leases (373,000) (1,137,000)
Proceeds from issuance of common stock in equity offering 94,203,000 0
Proceeds from the exercise of stock options 1,104,000 260,000
Proceeds from Series A preferred units financing 3,130,000 11,564,000
Series A preferred financing redemption (300,000) 0
Net cash provided by financing activities 43,348,000 10,986,000
Effect of exchange rate changes on cash and cash equivalents (11,000) (11,000)
Net change in cash and cash equivalents for period 5,797,000 (577,000)
Cash and cash equivalents at beginning of period 592,000 656,000
Cash and cash equivalents at end of period 6,389,000 79,000
Supplemental disclosures of cash flow information, cash paid:    
Cash paid for interest 5,646,000 702,000
Income taxes paid 7,000 8,000
Supplemental disclosures of cash flow information, non-cash transactions:    
Subordinated debt extension fees added to debt 680,000 680,000
Fair value of warrants issued to subordinated debt holders 1,546,000 181,000
TEC debt extension, waiver fees, promissory notes fees added to debt 608,000 1,793,000
Capital expenditures in accounts payable 4,695,000 1,182,000
Operating lease liabilities arising from obtaining right of use assets 0 2,688,000
Financing lease liabilities arising from obtaining right of use assets 113,000 2,988,000
Capital expenditures purchased on financing 55,000 5,652,000
Issuance of equity to pay off accounts payable $ 893,000 $ 0