Note 9 - Property and Equipment (Details Textual) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Depreciation	$ 0.2	$ 0.1	$ 0.4	$ 0.1
Digital Diagnostics Imaging, Inc. ("DDI") [Member]
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment			(0.4)
Digital Diagnostics Imaging, Inc. ("DDI") [Member] | Medical Equipment [Member]
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment			$ (0.4)