CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 4,293	$ 1,554
Accounts receivable	47,176	40,981
Unbilled receivables	1	5,311
Inventory	28,660	25,044
Prepaid expenses and other current assets	2,990	2,635
Total current assets	83,120	75,525
Property, plant and equipment, net	230,727	236,692
Operating lease right-of-use assets	26,343	23,153
Intangible assets, net	4,688	5,084
Other assets	971	1,092
Total assets	345,849	341,546
Current liabilities:
Accounts payable	15,580	16,988
Accrued expenses and other liabilities	13,976	12,561
Deferred revenue	17	54
Current portion of long-term debt	4,041	3,554
Current portion of operating lease liabilities	11,169	10,053
Total current liabilities	44,783	43,210
Long-term debt	17,594	9,130
Long-term operating lease liabilities	16,191	14,486
Deferred tax liabilities, net	4,706	9,316
Asset retirement obligations	21,854	21,292
Other non-current liabilities	221	302
Total liabilities	105,349	97,736
Commitments and contingencies (Note 12)
Stockholders’ equity
Common stock, $0.001 par value, 350,000,000 shares authorized; 47,392,430 issued and 38,654,420 outstanding at June 30, 2025; 46,644,853 issued and 39,067,094 outstanding at December 31, 2024	39	39
Treasury stock, at cost, 8,738,010 and 7,577,759 shares at June 30, 2025 and December 31, 2024, respectively	(17,109)	(14,671)
Additional paid-in capital	187,222	185,263
Retained earnings	70,404	73,239
Accumulated other comprehensive loss	(56)	(60)
Total stockholders’ equity	240,500	243,810
Total liabilities and stockholders’ equity	$ 345,849	$ 341,546