Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities
Net income	$ 41,471	$ 4,143
Adjustments to reconcile net income to net cash from operating activities:
Accretion of asset retirement obligations	235	151
Depreciation and amortization	8,680	6,155
Amortization of debt issuance costs	121	14
Stock-based compensation	1,887	1,055
Other income - employee retention tax credit		(2,462)
Deferred income taxes	5,015	(166)
Changes in operating assets and liabilities:
Accounts receivable	(3,194)	(1,444)
Prepaid expenses and other current assets	1,807	1,127
Inventories	(3,752)	(12,243)
Other assets and liabilities	(591)	(220)
Accounts payable	18,653	5,324
Accrued expenses	7,037	(935)
Net cash from operating activities	77,369	499
Cash flow from investing activities:
Capital Expenditures	(19,742)	(3,725)
Net cash from investing activities	(19,742)	(3,725)
Cash flows from financing activities
Proceeds from borrowings	1,337	11,600
Payments of dividends	(4,998)
Repayments of borrowings	(2,519)	(8,208)
Repayments of financed insurance payable	(105)	(377)
Repayments of financing leased equipment	(1,635)
Net cash from financing activities	(7,920)	3,015
Net change in cash and cash equivalents and restricted cash	49,707	(211)
Cash and cash equivalents and restricted cash, beginning of period	22,806	6,710
Cash and cash equivalents and restricted cash, end of period	72,513	6,499
Supplemental cash flow information:
Cash paid for interest	903	186
Non-cash investing and financing activities:
Leased assets obtained under new financing leases	3,624
Capital expenditures included in accounts payable and accrued expenses	13,059	913
Additional asset retirement obligations incurred, net	$ 928	$ 26