UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Operating activities:
Net losses	$ (2,727)	$ (1,172)
Adjustments to reconcile net losses to net cash provided by (used in) operating activities:
Depreciation and amortization	12,535	14,353
Gains on sales of property	(855)	(766)
Provision for credit losses	(75)	(10)
Stock-based compensation expense	758	655
Change in contingent consideration liability	0	(2,566)
Deferred income taxes	(1,623)	(770)
Net change in fair value contracts	0	(300)
Changes in assets and liabilities:
Accounts receivable	(7,365)	30,616
Accounts receivable/payable, affiliates	0	(31)
Inventories	(68)	396
Income tax receivable	(109)	(469)
Prepayments and other current assets	(225)	510
Accounts payable	20,672	(41,606)
Accrued liabilities	393	(2,564)
Other	67	116
Net cash provided by (used in) operating activities	21,378	(3,608)
Investing activities:
Property and equipment additions	(8,510)	(5,908)
Proceeds from property sales	2,310	1,444
Net cash used in investing activities	(6,200)	(4,464)
Financing activities:
Borrowings under Credit Agreement	0	38,000
Repayments under Credit Agreement	(6,250)	(39,250)
Principal repayments of finance lease obligations	(3,249)	(3,247)
Net proceeds from sale of equity	0	549
Dividends paid on common stock	(1,289)	(1,289)
Net cash used in financing activities	(10,788)	(5,237)
Increase (Decrease) in cash and cash equivalents, including restricted cash	4,390	(13,309)
Cash and cash equivalents, including restricted cash, at beginning of period	45,246	31,067
Cash and cash equivalents, including restricted cash, at end of period	$ 49,636	$ 17,758