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Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Current assets:    
Cash and cash equivalents $ 8,286 $ 5,374
Accounts receivable, net 5,620 7,752
Inventories, net 137 169
Prepaid expenses and other current assets 1,442 1,677
Total current assets 15,485 14,972
Property, plant and equipment:    
Cost 111,435 110,646
Less: accumulated depreciation (62,819) (61,167)
Property, Plant and Equipment, Net 48,616 49,479
Goodwill 4,314 4,314
Investments in foreign joint ventures 11,780 12,009
Right-of-use assets and other noncurrent assets 452 525
Total assets 80,647 81,299
Current liabilities:    
Accounts payable 5,811 5,707
Accrued liabilities 2,432 4,166
Current portion of finance and operating lease obligations 112 164
Total current liabilities 10,012 11,719
Long-term notes payable, net of current portion and debt issuance costs 7,446 7,747
Long-term portion of finance and operating lease obligations 0 21
Total liabilities 17,458 19,487
Commitments and contingencies (Note 9)
Stockholders’ Equity:    
Preferred stock; $0.001 par value, 1,000,000 shares authorized, no shares issued and outstanding at March 31, 2024 and December 31, 2023 0 0
Common stock; $0.001 par value, 37,500,000 shares authorized, 18,585,014 and 18,573,391 shares issued and outstanding at March 31, 2024 and December 31, 2023, respectively 19 19
Additional paid-in capital 102,431 102,057
Accumulated other comprehensive loss (484) (18)
Accumulated deficit (38,777) (40,246)
Total stockholders’ equity 63,189 61,812
Total liabilities and stockholders’ equity 80,647 81,299
Nonrelated Party [Member]    
Current liabilities:    
Current portion of long-term notes payable $ 1,657 $ 1,682