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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 6,072 $ 5,510
Accounts receivable 23,231 35,746
Unbilled receivables 2,561 79
Inventory 26,823 20,185
Prepaid expenses and other current assets 3,217 6,593
Total current assets 61,904 68,113
Property, plant and equipment, net 255,092 258,843
Operating lease right-of-use assets 23,265 26,075
Intangible assets, net 5,876 6,669
Other assets 163 303
Total assets 346,300 360,003
Current liabilities:    
Accounts payable 16,041 14,435
Total accrued liabilities 11,024 13,430
Deferred revenue 1,154 6,959
Current portion of long-term debt 15,711 6,183
Current portion of operating lease liabilities 10,536 10,910
Total current liabilities 54,466 51,917
Long-term debt 3,449 9,807
Long-term operating lease liabilities 14,056 17,642
Deferred tax liabilities, long-term, net 12,101 18,238
Asset retirement obligation 19,923 18,888
Other non-current liabilities 38 40
Total liabilities 104,033 116,532
Commitments and contingencies (Note 16)
Stockholders’ equity    
Common stock, $0.001 par value, 350,000,000 shares authorized; 45,858,022    issued and 38,486,762 outstanding at December 31, 2023; 45,099,067    issued and 43,088,106 outstanding at December 31, 2022 39 43
Treasury stock, at cost, 7,371,260 and 2,010,961 shares at    December 31, 2023 and 2022, respectively (14,249) (5,075)
Additional paid-in capital 181,973 178,386
Retained earnings 74,539 69,890
Accumulated other comprehensive (loss) income (35) 227
Total stockholders’ equity 242,267 243,471
Total liabilities and stockholders’ equity $ 346,300 $ 360,003