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Note 14 - Income Taxes - Components of Net Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Mar. 31, 2020
--- | --- | ---
Net operating loss | $ 8,990 | $ 8,874
Stock compensation deductible differences | 2,099 | 1,265
Inventories | 838 | 504
Allowances and reserves | 1,471 | 105
Accrued employee-related expenses | 209 | 208
Credits | 169 | 47
Other | 25 | 458
Total deferred tax assets | 13,801 | 11,461
Goodwill and intangible assets | (23,029) | (24,825)
Debt | (4,723) | (5,982)
Property, plant and equipment | (1,275) | (1,286)
Other | (29) | (65)
Total deferred tax liabilities | (29,056) | (32,158)
Valuation allowance | (404) | (391)
Net deferred tax liability | $ (15,659) | $ (21,088)

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