v3.26.1
Note 2 - Summary of Significant Accounting Policies - Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Net loss $ (4,390,000) $ (2,783,000) $ (8,441,000) $ (7,013,000)
Deemed dividend – Series C redemption 427,000 0 427,000 0
Deemed dividend - Down round (1,002,000) 0 (1,002,000) 0
Preferred Dividends paid in shares of common stock 0 (100,000) (253,000) (101,000)
Net loss attributable to common stockholders $ (4,965,000) $ (2,883,000) $ (9,269,000) $ (7,114,000)