Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ (1,696)	$ 22,051	$ 22,051
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes	(610)	2,920
Equity loss (income) – Sunrise Energy	249	(69)
Cash distribution - Sunrise Energy	0	625
Depreciation, depletion and amortization	15,443	17,976
Loss on extinguishment of debt	853	0
Loss (gain) on sale of assets	(24)	21
Amortization of debt issuance costs	404	1,212
Asset retirement obligations accretion	399	451
Cash paid on asset retirement obligation reclamation	(639)	(365)
Stock-based compensation	666	1,220
Amortization of contract asset and contract liabilities	(12,788)	(15,569)
Other	937	451
Change in operating assets and liabilities:
Accounts receivable	5,709	(3,269)
Inventory	(6,613)	(4,004)
Parts and supplies	(1,483)	(2,926)
Prepaid expenses	(37)	389
Accounts payable and accrued liabilities	(8,015)	2,009
Deferred revenue	23,614	2,989
Net cash provided by operating activities	16,369	26,112
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(14,874)	(13,482)
Proceeds from sale of equipment	24	15
Net cash used in investing activities	(14,850)	(13,467)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments on bank debt	(26,500)	(27,013)
Payments on lease financing	(1,238)	0
Borrowings of bank debt	12,000	17,000
Proceeds from sale and leaseback arrangement	1,927	0
Issuance of related party notes payable	5,000	0
Debt issuance costs	(38)	(1,600)
ATM offering	6,580	0
Taxes paid on vesting of RSUs	(1)	(1,109)
Net cash used in financing activities	(2,270)	(12,722)
Decrease in cash, cash equivalents, and restricted cash	(751)	(77)
Cash, cash equivalents, and restricted cash, beginning of period	7,123	6,426
Cash, cash equivalents, and restricted cash, end of period	6,372	6,349	$ 6,426
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH:
Cash and cash equivalents	1,635	2,441
Restricted cash	4,737	3,908
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents	6,372	6,349
SUPPLEMENTAL CASH FLOW INFORMATION:
Cash paid for interest	3,083	3,116
SUPPLEMENTAL NON-CASH FLOW INFORMATION:
Change in capital expenditures included in accounts payable and prepaid expense	(5,290)	(120)
Change in capital expenditures included in accounts payable and prepaid expense	5,290	120
Stock issued on redemption of convertible notes and interest	$ 9,721	$ 0