Note 3 - Revenue Recognition 1 (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Revenue from Contract with Customer, Including Assessed Tax	$ 94,038	$ 65,862	$ 188,111	$ 138,220
Held Transactions [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 700	$ 7,900	$ 700	$ 7,900
Minimum [Member]
Warranty Period (Year)	1 year
Contract with Customer, Payment Term (Day)	30 days
Maximum [Member]
Warranty Period (Year)	3 years
Extended Service Warranty, Term (Year)	4 years
Contract with Customer, Payment Term (Day)	60 days
Transferred at Point in Time [Member]
Revenue, Performance Obligation Satisfied, Revenue Recognized, Percentage	86.00%	90.00%	89.00%	90.00%
Sale of Product [Member]
Revenue, Performance Obligation Satisfied, Revenue Recognized, Percentage	93.00%	93.00%	93.00%	93.00%

Represents the payment term, from the date of delivery, under contracts with customers.

No definition available.

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- Definition

Represents the additional term of extended service-type warranties.

+ References

No definition available.

+ Details

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- Definition

Represents the percentage of revenue recognized at the point of time when control transferred to the customer.

+ References

No definition available.

+ Details

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- Definition

Represents the typical term of assurance-type warranties on all product sales.

+ References

No definition available.

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- Definition

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

+ References

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