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Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Current assets:    
Cash and cash equivalents $ 10,305 $ 8,987
Accounts receivable, net 6,900 6,239
Inventories, net 244 345
Prepaid expenses and other current assets 1,940 1,902
Total current assets 19,389 17,473
Property, plant and equipment:    
Cost 121,869 117,246
Less: accumulated depreciation (70,911) (65,518)
Property, Plant and Equipment, Net 50,958 51,728
Goodwill 4,314 4,314
Investments in foreign joint ventures 11,157 11,659
Right-of-use assets and other noncurrent assets 1,320 410
Total assets 87,138 85,584
Current liabilities:    
Accounts payable 7,597 5,667
Accrued liabilities 3,335 3,566
Current portion of finance and operating lease obligations 494 384
Total current liabilities 13,639 11,627
Long-term notes payable, net of current portion and debt issuance costs 6,048 6,848
Long-term portion of operating lease obligations 756 101
Total liabilities 20,443 18,576
Commitments and contingencies (Note 9)
Stockholders’ equity:    
Preferred stock; $0.001 par value, 1,000,000 shares authorized, no shares issued and outstanding at September 30, 2025 and December 31, 2024 0 0
Common stock; $0.001 par value, 37,500,000 shares authorized, 18,596,301 and 18,585,014 shares issued and outstanding at September 30, 2025 and December 31, 2024, respectively 19 19
Additional paid-in capital 103,644 103,214
Accumulated other comprehensive loss (229) (578)
Accumulated deficit (36,739) (35,647)
Total stockholders’ equity 66,695 67,008
Total liabilities and stockholders’ equity 87,138 85,584
Nonrelated Party [Member]    
Current liabilities:    
Current portion of long-term notes payable $ 2,213 $ 2,010