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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2020
Mar. 31, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Cash flows from operating activities:                
Net loss   $ (1,004) $ 175 $ (3,463) $ (1,050) $ (829) $ (4,513)  
Adjustments to reconcile net loss to net cash provided by operating activities:                
Depreciation expense   2,218   2,266   4,443 4,536  
Deferred income tax expense (benefit)           (6) 28  
Stock-based compensation expense           284 158  
Bad debt expense           0 144  
Gain on disposal of fixed assets           (24) (11)  
Gain on extinguishment of debt $ (1,100)         (1,086) 0  
Income from equity investment in joint venture   (538)   (1,001)   (959) (887)  
Distributions from equity investment in joint venture           1,387 2,054  
Deferred compensation costs           (28) 87  
Amortization of debt issuance costs           10 0  
Change in operating assets and liabilities, net of acquisitions:                
Accounts receivable           (1,428) 4,316  
Due to (from) related parties           42 0  
Inventories           92 28  
Prepaid expenses and other current assets           (453) 920  
Accounts payable and accrued liabilities           1,150 (2,537)  
Other           16 0  
Net cash provided by operating activities           2,611 4,323  
Cash flows from investing activities:                
Acquisition of fixed assets           (5,917) (281)  
Proceeds on sales of fixed assets           258 12  
Net cash used in investing activities           (5,659) (269)  
Cash flows from financing activities:                
Proceeds on long-term borrowings           7,087 1,080  
Payments on long-term borrowings and financed leases from related parties           (1,701) (1,694)  
Payments on short-term notes payable           (448) (201)  
Payment of debt issuance costs           (420) 0  
Net cash provided by (used in) financing activities           4,518 (815)  
Effect of exchange rate changes on cash           29 (162)  
Net increase in cash and cash equivalents           1,499 3,077  
Cash and cash equivalents, beginning of period     $ 1,814   $ 3,979 1,814 3,979 $ 3,979
Cash and cash equivalents, end of period $ 3,313 $ 3,313   $ 7,056   3,313 7,056 $ 1,814
Supplemental disclosure of cash flow information:                
Interest paid           380 474  
Income taxes paid           169 210  
Non-cash investing and financing activities:                
Common stock issued to acquire fixed assets           3,795 0  
Equipment acquired under capital leases           $ 104 $ 0