Note 1 - Organization and Operations (Details Textual) - USD ($) |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2025 |
Apr. 27, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Net Income (Loss) Attributable to Parent | $ (24,555,000) | $ (23,938,000) | ||
| Net Cash Provided by (Used in) Operating Activities | (13,632,000) | (3,193,000) | ||
| Proceeds from Sale of Real Estate | 12,278,000 | |||
| Cash and Cash Equivalents, at Carrying Value | 4,079,000 | 16,522,000 | ||
| Working Capital | (3,538,000) | |||
| Retained Earnings (Accumulated Deficit) | (247,770,000) | (223,215,000) | ||
| Repayments of Notes Payable | $ (0) | $ 6,000,000 | ||
| Forecast [Member] | ||||
| Repayments of Notes Payable | $ 1,500,000 | $ 3,000,000 | ||
| X | ||||||||||
- Definition Represents operating liquidity available measured as subtracting current liabilities from current assets. No definition available.
|
| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes 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. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Cash received for the sale of real estate that is not part of an investing activity during the current period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cash outflow for a borrowing supported by a written promise to pay an obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of accumulated undistributed earnings (deficit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|