CONSOLIDATED STATEMENTS OF CASH FLOWS $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Cash flows from operating activities:
Net (loss) income	$ (4,528)	$ 4,603	$ 5,820
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization	22,869	22,117	19,760
Provision (benefit) for deferred income taxes	4,252	(6,077)	(898)
Loss on extinguishment of debt	154
Stock-based compensation	22,419	762	570
Related party receivables		164
Gain on property insurance proceeds	(332)	(1,659)
Derivative mark-to-market and settlements	(1,421)
Derivative mark-to-market and settlements		1,016	994
Net (gain) loss on sale of assets	822	320	(40)
Loss on earn-out liability increase	801
Accretion of asset retirement obligations	(160)	320	391
Amortization of debt issuance costs	483	695	1,118
Equity (income) loss of nonconsolidated investments			(94)
Impairment loss	1,191	278	2,443
Accounts and other receivables and other current assets	(1,522)	2,483	(2,287)
Accounts payable and other accrued expenses	(2,149)	3,662	48
Net cash provided by operating activities	42,879	28,684	27,825
Cash flows from investing activities
Capital expenditures	(9,986)	(17,646)	(45,610)
Asset acquisitions	(9,673)
Cash collateral deposits, net	(220)		353
Proceeds from sale of equity method investments			300
Proceeds from insurance recovery	332	1,659	30
Proceeds from sale of assets	73
Net cash used in investing activities	(19,474)	(15,987)	(44,927)
Cash flows from financing activities:
Borrowings of long-term debt	80,000	8,500	28,198
Repayments of long-term debt	(66,698)	(10,000)	(55,001)
Debt issuance costs	(339)		(638)
Debt extinguishment costs	(154)
Proceeds from initial public offering	15,593
Treasury stock purchase	(10,813)
Related party receivable	(8,940)
Class B shareholder repurchase			(74)
Net cash provided by (used in) financing activities	8,649	(1,500)	(27,515)
Net increase or decrease in cash and cash equivalents and restricted cash	32,054	11,197	(44,617)
Cash and cash equivalents and restricted cash at beginning of year	21,559	10,362	54,979
Cash and cash equivalents and restricted cash at end of year	53,613	21,559	10,362
Reconciliation of cash, cash equivalents, and restricted cash at end of year:
Cash and cash equivalents	53,266	20,992	9,788
Restricted cash and cash equivalents-current	19	0	7
Restricted cash and cash equivalents-non-current	328	567	567
Reconciliation of cash, cash equivalents, and restricted cash at end of year	53,613	21,559	10,362
Supplemental cash flow information:
Cash paid for interest (net of amounts capitalized)	3,787	4,184	4,847
Cash paid (refunded) for income taxes	$ 280	$ (454)	$ 2,679