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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Cash flows from operating activities:    
Net loss $ (7,798) $ (6,756)
Adjustments to reconcile net loss to net cash provided by operating activities:    
Depreciation 9,059 9,041
Stock-based compensation expense 3,233 530
Bad debt expense 80 144
Gain on disposal of fixed assets (24) (283)
Gain on extinguishment of debt (1,086) 0
Income from equity investment in joint venture (2,146) (2,705)
Distributions from equity investment in joint venture 2,089 2,054
Impairment of right-of-use lease asset 376 0
Changes in operating assets and liabilities:    
Accounts receivable (4,480) (328)
Due to related parties 42 0
Inventories (135) (54)
Prepaid expenses and other current assets 1,322 87
Accounts payable and accrued liabilities 4,244 (575)
Other 130 181
Net cash provided by operating activities 4,906 1,336
Cash flows from investing activities:    
Acquisition of fixed assets (7,813) (768)
Proceeds on sales of fixed assets 293 512
Net cash used in investing activities (7,520) (256)
Cash flows from financing activities:    
Proceeds on borrowings from short- and long-term notes payable 8,220 2,000
Payments on short- and long-term notes payable (1,075) (1,752)
Payments on notes payable and financed leases from related parties (3,284) (3,440)
Payments of debt issuance costs (420) 0
Employee tax payments from restricted stock withholdings (430) 0
Other 0 (10)
Net cash provided by (used in) financing activities 3,011 (3,202)
Effect of exchange rate changes on cash (151) (43)
Net increase (decrease) in cash and cash equivalents 246 (2,165)
Cash and cash equivalents, beginning of period 1,814 3,979
Cash and cash equivalents, end of period 2,060 1,814
Supplemental disclosure of cash flow information:    
Interest paid 888 910
Income taxes paid 322 210
Non-cash investing and financing activities:    
Common stock issued to acquire fixed assets 3,795 0
Acquisitions of fixed assets included within accounts payable 314 0
Deferred interest expense reclassified to notes payable 136 0
Insurance premium financing 1,278 0
Equipment acquired under finance lease $ 104 $ 1,159