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Consolidated Condensed Balance Sheets (Current Period Unaudited) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Current assets:    
Cash and cash equivalents $ 1,629 $ 2,667
Accounts receivable 8,867 8,633
Inventories, net of allowance for excess and obsolete inventory of $1,040 as of March 31, 2024 and December 31, 2023, respectively 16,011 18,291
Prepaid expenses 2,418 3,347
Other current assets 4,027 3,462
Total current assets 32,952 36,400
Property, plant and equipment, net 197,737 195,108
Operating lease right-of-use assets 1,951 2,056
Other assets 9,599 9,842
Total assets 242,239 243,406
Current liabilities:    
Accounts payable 29,789 32,132
Current portion of long term debt 48,870 13,585
Short term borrowings 23,937 23,443
Other current liabilities 15,322 15,229
Total current liabilities 117,918 84,389
Long term liabilities:    
Senior secured notes and revolving notes 150,830 176,476
EB-5 notes 29,500 29,500
Other long term debt 54,087 51,717
Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount, Noncurrent 116,900 113,200
Other long term liabilities 5,175 5,112
Total long term liabilities 356,462 375,994
Stockholders' deficit:    
Common stock, $0.001 par value per share; 80,000 shares authorized; 42,616 and 40,966 shares issued and outstanding each period, respectively 43 41
Additional paid-in capital 273,167 264,058
Accumulated deficit (499,636) (475,405)
Accumulated other comprehensive loss (5,715) (5,671)
Total stockholders' deficit (232,141) (216,977)
Total liabilities and stockholders' deficit 242,239 243,406
Convertible Series A Preferred Stock Subject to Mandatory Redemption [Member]    
Long term liabilities:    
Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount, Noncurrent $ 116,870 $ 113,189