CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net income	$ 1,335	$ 406
Adjustments to reconcile net income to net cash provided by continuing operating      activities:
Depreciation, depletion and amortization	2,596	2,842
Deferred income taxes	0	53
Equity in loss of joint ventures	3,019	3,625
Gain on sale of equipment and property	0	(17)
Stock-based compensation	320	324
Net changes in operating assets and liabilities:
Accounts receivable	(351)	(167)
Deferred costs and other assets	75	170
Accounts payable and accrued liabilities	(4,509)	(2,860)
Income taxes payable and receivable	397	295
Other long-term liabilities	24	16
Net cash provided by operating activities	2,906	4,687
Cash flows from investing activities:
Investments in properties	(6,205)	(1,206)
Investments in joint ventures	(7,771)	(12,766)
Return of capital from investments in joint ventures	6,546	4,988
Proceeds from sales of investments available for sale	0	0
Proceeds from the sale of assets	0	17
Cash held in escrow	205	212
Net cash used in investing activities	(7,225)	(8,755)
Cash flows from financing activities:
Distribution to noncontrolling interest	(752)	(933)
Exercise of employee stock options	0	803
Net cash used in financing activities	(752)	(130)
Net decrease in cash and cash equivalents	(5,071)	(4,198)
Cash and cash equivalents at beginning of year	157,555	177,497
Cash and cash equivalents at end of the period	152,484	173,299
Supplemental disclosure of cash flow information:
Interest	903	1,004
Income taxes	$ 0	$ 0