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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS    
Operating revenues $ 29,408 $ 21,934
Operating costs:    
Operating expenses 23,782 14,403
General and administrative 3,499 5,868
Depreciation and amortization 2,700 3,101
Total cost and expenses 29,981 23,372
Loss from operations (573) (1,438)
Other income (expense):    
Interest income 108 26
Interest expense (17) (11)
Other income (expense), net 52 39
Loss before income tax (430) (1,384)
Income tax benefit (expense): 17 (1)
Net loss (413) (1,385)
Other comprehensive loss:    
Net unrealized loss on foreign exchange rate translation (6) (233)
Comprehensive loss $ (419) $ (1,618)
Basic loss per share of common stock $ (0.02) $ (0.06)
Diluted loss per share of common stock $ (0.02) $ (0.06)
Weighted average equivalent common shares outstanding 25,000,564 24,709,159
Weighted average equivalent common shares outstanding - assuming dilution 25,000,564 24,709,159