Note 7 - Stock Based Compensation - Schedule of Stock Compensation Expense (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Share-Based Payment Arrangement, Option [Member]
Stock Based Compensation	$ 62,000	$ 124,000
Restricted Stock Units (RSUs) [Member]
Stock Based Compensation	380,000
The 2019 Equity Incentive Plan [Member]
Stock Based Compensation	62,000	504,000
The 2019 Equity Incentive Plan [Member] | Research and Development Expense [Member]
Stock Based Compensation	0	0
The 2019 Equity Incentive Plan [Member] | General and Administrative Expense [Member]
Stock Based Compensation	62,000	504,000
The 2019 Equity Incentive Plan [Member] | Share-Based Payment Arrangement, Option [Member]
Stock Based Compensation	62,000	124,000
The 2019 Equity Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member]
Stock Based Compensation	$ 0	$ 380,000