Note 4 - Goodwill and Intangible Assets (Details Textual) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($)	Dec. 31, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($)	Sep. 30, 2023 $ / shares
Number of Reporting Units			1
Finder's Fee Payment Capitalized	$ 2,200		$ 2,200
Amortization of Intangible Assets	307	$ 25	523	$ 76
Finite-Lived Intangible Assets [Member]
Amortization of Intangible Assets	$ 300	$ 100	$ 500	$ 100
Stock Issued in Exchange for Intangibles [Member]
Shares Issued, Price Per Share (in dollars per share) | $ / shares	$ 8		$ 8		$ 8
Finder's Fee Payment Capitalized	$ 2,300		$ 2,300