v3.25.4
Consolidated Statements of Operations - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Revenues $ 68,245 $ 73,293
Operating expenses:    
Cost of revenues 50,229 52,069
Change in unrealized gain on natural gas derivatives (24) (310)
Selling, general and administrative expenses 13,189 11,763
Loss (gain) from disposal of fixed assets 24 (761)
Depreciation expense 7,345 7,146
Total operating expenses 70,763 69,907
Income (loss) from operations before equity income (2,518) 3,386
Net equity income from foreign joint venture operations:    
Income from equity investment in foreign joint venture 1,453 1,770
Foreign joint venture operating related expenses (211) (206)
Net equity income from foreign joint venture operations 1,242 1,564
Income (loss) from operations (1,276) 4,950
Other income (expense):    
Other income (expense), net (66) 22
Total other income (expense) (24) 134
Net income (loss) before income tax expense (1,300) 5,084
Income tax expense 54 485
Net income (loss) $ (1,354) $ 4,599
Net income (loss) per common share (Note 15):    
Basic and diluted per common share (in dollars per share) $ (0.07) $ 0.25
Nonrelated Party [Member]    
Other income (expense):    
Interest income, net $ 42 $ 112