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Note 6 - Goodwill and Other Intangibles - Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Mar. 31, 2025
Gross Amount	$ 29,257	$ 20,031
BacklogAccumulated Amortization	(15,405)	(14,116)
Net Book Value	12,052
Intangible assets, net	13,852	5,916
Trade Names [Member]
Indefinite life intangible assets	1,800	1,800
Backlog [Member]
Gross Amount	3,095	1,381
BacklogAccumulated Amortization	(1,488)	(1,381)
Net Book Value	$ 1,607	0
Estimated Useful Life (Year)	2 years
Customer Relationships [Member]
Gross Amount	$ 18,392	10,880
BacklogAccumulated Amortization	(8,720)	(7,901)
Net Book Value	$ 9,671	2,980
Customer Relationships [Member] | Minimum [Member]
Estimated Useful Life (Year)	7 years
Customer Relationships [Member] | Maximum [Member]
Estimated Useful Life (Year)	10 years
Core Technology and Know-how [Member]
Gross Amount	$ 5,970	5,970
BacklogAccumulated Amortization	(5,197)	(4,834)
Net Book Value	$ 773	1,136
Core Technology and Know-how [Member] | Minimum [Member]
Estimated Useful Life (Year)	5 years
Core Technology and Know-how [Member] | Maximum [Member]
Estimated Useful Life (Year)	10 years
UNITED STATES
Intangible assets, net	$ 4,904	5,916
BRAZIL
Intangible assets, net	$ 8,947	$ 0

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