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Note 13 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Mar. 31, 2020
Net operating loss carryforwards $ 184,455 $ 195,504
Research and development and other tax credit carryforwards 13,280 13,244
Accruals and reserves 5,416 5,352
Fixed assets and intangible assets 1,414 1,697
Other 1,149 1,565
Gross deferred tax assets 205,714 217,362
Valuation allowance (200,081) (199,989)
Total deferred tax assets 5,633 17,373
Intercompany Debt (4,205) (14,365)
Other (479) (1,637)
Total deferred tax liabilities (4,684) (16,002)
Net deferred tax assets $ 949 $ 1,371