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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Sep. 30, 2024
Dec. 31, 2023
Current assets:    
Cash and cash equivalents $ 7,215 $ 6,072
Accounts receivable 24,164 23,231
Unbilled receivables 2,743 2,561
Inventory 27,839 26,823
Prepaid expenses and other current assets 2,786 3,217
Total current assets 64,747 61,904
Property, plant and equipment, net 241,889 255,092
Operating lease right-of-use assets 22,742 23,265
Intangible assets, net 5,282 5,876
Other assets 1,151 163
Total assets 335,811 346,300
Current liabilities:    
Accounts payable 10,860 16,041
Accrued expenses and other liabilities 12,427 11,024
Deferred revenue 1,351 1,154
Current portion of long-term debt 3,664 15,711
Current portion of operating lease liabilities 9,497 10,536
Total current liabilities 37,799 54,466
Long-term debt 9,906 3,449
Long-term operating lease liabilities 13,964 14,056
Deferred tax liabilities, net 9,884 12,101
Asset retirement obligations 20,670 19,923
Other non-current liabilities 38 38
Total liabilities 92,261 104,033
Commitments and contingencies (Note 13)
Stockholders’ equity    
Common stock, $0.001 par value, 350,000,000 shares authorized; 46,573,353 issued and 39,016,629 outstanding at September 30, 2024; 45,858,022 issued and 38,486,762 outstanding at December 31, 2023 39 39
Treasury stock, at cost, 7,556,724 and 7,371,260 shares at September 30, 2024 and December 31, 2023, respectively (14,624) (14,249)
Additional paid-in capital 184,390 181,973
Retained earnings 73,795 74,539
Accumulated other comprehensive loss (50) (35)
Total stockholders’ equity 243,550 242,267
Total liabilities and stockholders’ equity $ 335,811 $ 346,300