Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023
NET CASH USED IN OPERATING ACTIVITIES	$ (543)	$ (444)
CASH FLOWS FROM INVESTING ACTIVITIES
Payments for property and deferred development costs	(1,235)	(198)
Contributions to investment in joint venture	(19)	0
Purchases of debt securities	(2,159)	(1,742)
Maturities of debt securities	2,067	1,668
NET CASH USED IN INVESTING ACTIVITIES	(1,346)	(272)
CASH FLOWS FROM FINANCING ACTIVITIES
Debt and common stock issuance costs and other	(78)	(547)
NET CASH USED IN FINANCING ACTIVITIES	(78)	(547)
NET DECREASE IN CASH AND CASH EQUIVALENTS	(1,967)	(1,263)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	5,700	8,509
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 3,733	$ 7,246

Amount of cash outflow for property and deferred development costs.

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Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including, but not limited to, disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The cash outflow for cost incurred directly with the issuance of an equity security.

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Amount of cash outflow through purchase of long-term held-to-maturity securities.

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The cash inflow associated with the maturity, prepayments and calls (requests for early payments) of debt securities designated as held-to-maturity.

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