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Note 13 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Mar. 31, 2021
--- | --- | ---
Net operating loss carryforwards | $ 171,274 | $ 184,455
Research and development and other tax credit carryforwards | 13,464 | 13,280
Accruals and reserves | 5,366 | 5,416
Fixed assets and intangible assets | 565 | 1,414
Other | 1,432 | 1,149
Gross deferred tax assets | 192,101 | 205,714
Valuation allowance | (186,618) | (200,081)
Total deferred tax assets | 5,483 | 5,633
Intercompany Debt | 0 | (4,205)
Amortization | (2,721) | 0
Other | (1,835) | (479)
Total deferred tax liabilities | (4,556) | (4,684)
Net deferred tax assets | $ 927 | $ 949

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