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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Cash flows from operating activities    
Net Income (loss) $ (58) $ 1
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities    
Depreciation, depletion and amortization 10 10
Changes in assets and liabilities:    
Interest receivable 4
Other current assets (18) (14)
Accounts payable and other liabilities 6 (14)
Net cash provided by (used in) operating activities (56) (17)
Net increase (decrease) in cash and cash equivalents (56) (17)
Cash and cash equivalents at beginning of year 363 447
Cash and cash equivalents at end of period $ 307 $ 430