Note 3 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024
Inventory Valuation Reserves	$ 3,500	$ 1,500
Asset Impairment Charges			$ 0
Goodwill, Impairment Loss		0
Revenue from Contract with Customer, Including Assessed Tax	299,155	$ 222,818	$ 145,639
Increase Decrease in Non-cash Income Tax Benefit Regarding Valuation Allowance	$ 118,400
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	428,111	468,815	809,949
Gain (Loss), Foreign Currency Transaction, before Tax	$ (1,100)	$ (700)	$ (700)
Performance-based Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	427,380	468,652	509,949
Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	731
Shares Tied to Derivative Liability [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)		163	300,000
Held Transactions [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 7,900	$ 0	$ 0
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Irving Shipbuilding [Member]
Concentration Risk, Percentage	10.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Innomotics LLC [Member]
Concentration Risk, Percentage		22.00%

The increase or decrease in the non-cash income tax benefit from changes in valuation allowance.

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Amount, before tax, of realized and unrealized gain (loss) from foreign currency transaction.

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