Note 13 - Leases (Details Textual) $ in Millions	12 Months Ended
	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2023	Dec. 22, 2020 ft²
Lessee, Operating Lease, Discount Rate			8.50%
PodcastOne [Member]
Operating Lease, Expense	$ 0.3	$ 0.3
Leases Under 12 Months [Member]
Operating Lease, Expense	0.5	0.2
Leases Over 12 Months [Member]
Operating Lease, Expense	$ 0.4	$ 0.4
Addison, Illinois Manufacturing Facility [Member]
Area of Real Estate Property (Square Foot) | ft²				55,120