Note 12 - Income Taxes - Components of Net Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Mar. 31, 2022
Net operating loss	$ 6,945	$ 11,274
Credits	4,769	5,321
Allowances and reserves	2,376	1,977
Capitalized research expenditures(1)	3,124	0
Stock compensation deductible differences	1,384	2,137
Inventories	1,348	1,316
Other	188	394
Total deferred tax assets	20,134	22,419
Goodwill and intangible assets	(49,781)	(56,145)
Property, plant and equipment	(2,502)	(3,284)
Total deferred tax liabilities	(52,504)	(59,617)
Valuation allowance	(582)	(708)
Net deferred tax (liability)	$ (32,952)	$ (37,906)

Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible debt related.

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Amount of deferred tax liability attributable to taxable temporary differences.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible tax credit carryforwards, classified as other.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from compensation and benefits costs.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves, classified as other.

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Amount of deferred tax liability attributable to taxable temporary differences from intangible assets including goodwill.

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Amount of deferred tax liability attributable to taxable temporary differences classified as other.

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Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.

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Amount of deferred tax liability attributable to taxable temporary differences from unrealized gains on foreign currency transactions.

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