Note 4 - Debt Obligations (Details Textual) - USD ($)				1 Months Ended	3 Months Ended		9 Months Ended
	Apr. 05, 2025	Feb. 07, 2023	Feb. 07, 2022	Jul. 31, 2020	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Interest Expense, Debt					$ 144,000		$ 352,000	$ 34,000
Investment Income, Interest					80,000	$ 14,000	143,000	22,000
Proceeds from Issuance of Debt							50,000	$ 0
Paycheck Protection Program CARES Act [Member] | ONM [Member]
Long-Term Debt					43,000		43,000		$ 43,000
Proceeds from Issuance of Debt			$ 217,000
Extinguishment of Debt, Amount			$ 174,000
Economic Injury Disaster Loan [Member] | ONM [Member]
Debt Instrument, Face Amount				$ 150,000
Debt Instrument, Interest Rate, Stated Percentage				3.75%
Debt Instrument, Periodic Payment				$ 700
Long-Term Debt					141,000		141,000		144,000
Vehicle Loan [Member]
Debt Instrument, Face Amount		$ 80,000
Debt Instrument, Interest Rate, Stated Percentage		5.29%
Debt Instrument, Periodic Payment		$ 1,000
Long-Term Debt					$ 45,000		$ 45,000		$ 54,000
Term Loan Agreement [Member]
Debt Instrument, Face Amount	$ 50,000
Debt Instrument, Interest Rate, Stated Percentage	7.98%
Debt Instrument, Periodic Payment	$ 2,000
Long-Term Debt	$ 44,000