Note 4 - Debt Obligations - Schedule of Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Long-term debt, current	$ 83	$ 66
Vehicle Loan [Member]
Long-term debt, current	13	13
Total long-term debt, net of current	32	41
Term Loan Agreement [Member]
Long-term debt, current	17	0
Total long-term debt, net of current	27	0
SBA EIDL Loan [Member]
Long-term debt, current	10	10
Paycheck Protection Program CARES Act [Member]
Notes payable, current	43	43
Debt Excluding Clyra Medical Technologies [Member]
Total current portion of debt	83	66
Total long-term debt, net of current	190	175
Total	273	241
Economic Injury Disaster Loan [Member]
Total long-term debt, net of current	$ 131	$ 134