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Note 14 - Income Taxes - Schedule of Income Taxes Paid (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024
U.S Federal	$ 36
Total	706	$ 312	$ 286
Pennsylvania Tax Authority [Member]
U.S. State and Local	425
Connecticut Tax Authority [Member]
U.S. State and Local	77
Other State Tax Authorities [Member]
U.S. State and Local	90
Austrian Federal Ministry of Finance [Member]
Foreign	52
Other Foreign Tax Authority [Member]
Foreign	$ 26