Note 6 - Goodwill and Intangible Assets, Net - Amortization Expense for Finite-lived Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Amortization of acquisition-related intangibles	$ 4,550	$ 7,185	$ 8,611	$ 14,405
Cost of Sales [Member]
Amortization of acquisition-related intangibles	672	1,756	1,319	3,484
General and Administrative Expense [Member]
Amortization of acquisition-related intangibles	$ 3,878	$ 5,429	$ 7,292	$ 10,921

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
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-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 350
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-Name Accounting Standards Codification
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-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
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-Name Accounting Standards Codification
-Section 50
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
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