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Consolidated Condensed Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) shares in Thousands, $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Cash and cash equivalents | $ 296 | $ 2,667
Accounts receivable | 8,027 | 8,633
Prepaid expenses | 1,781 | 3,347
Other current assets | 5,004 | 3,462
Property, plant and equipment, net | 195,939 | 195,108
Operating lease right-of-use assets | 2,333 | 2,056
Other assets | 14,253 | 9,842
Accounts payable | 37,254 | 32,132
Current portion of long term debt | 55,797 | 13,585
Short term borrowings | 21,418 | 23,443
Other current liabilities | 17,773 | 15,229
Other long term debt | 54,583 | 51,717
Other long term liabilities | $ 5,232 | $ 5,112
Common Stock, Par Value (in dollars per share) | $ 0.001 | $ 0.001
Common Stock, Shares Authorized (in shares) | 80,000 | 80,000
Common Stock, Shares Issued (in shares) | 47,817 | 40,966
Common Stock, Shares Outstanding (in shares) | 47,817 | 40,966
Convertible Series A Preferred Stock Subject to Mandatory Redemption [Member] |  |
Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount, Noncurrent | $ 123,869 | $ 113,189
Variable Interest Entity, Primary Beneficiary [Member] |  |
Cash and cash equivalents | 0 | 1,093
Accounts receivable | 60 | 55
Prepaid expenses | 164 | 1,438
Other current assets | 2 | 289
Property, plant and equipment, net | 91,468 | 81,966
Operating lease right-of-use assets | 630 | 145
Other assets | 7,024 | 4,881
Accounts payable | 4,725 | 3,815
Current portion of long term debt | 730 | 190
Short term borrowings | 0 | 9
Other current liabilities | 40 | 48
Other long term debt | 45,880 | 40,857
Other long term liabilities | 516 | 67
Variable Interest Entity, Primary Beneficiary [Member] | Convertible Series A Preferred Stock Subject to Mandatory Redemption [Member] |  |
Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount, Noncurrent | $ 123,869 | $ 113,189

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