Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands |
Mar. 31, 2019 |
Mar. 31, 2018 |
|---|---|---|
| Deferred tax assets: | ||
| Inventories | $ 1,842 | $ 1,893 |
| Warranty reserve | 630 | 402 |
| Bad debt reserve | 1,245 | 1,373 |
| Deferred revenue | 1,584 | 1,108 |
| Net operating loss (NOL) carryforwards | 145,835 | 148,405 |
| Tax credit carryforwards | 16,021 | 16,627 |
| Depreciation, amortization and impairment loss | 2,734 | 2,673 |
| Other | 1,726 | 1,271 |
| Deferred tax assets | 171,617 | 173,752 |
| Valuation allowance for deferred tax assets | (171,617) | (173,752) |
| Deferred tax assets, net of valuation allowance | 0 | 0 |
| Deferred tax liabilities: | ||
| Federal benefit of state taxes | 0 | 0 |
| Net deferred tax assets | $ 0 | $ 0 |
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from depreciation, amortization and impairment. No definition available.
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- Definition Represents the amount of deferred tax liability attributable to taxable temporary differences from federal benefit of state taxes. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from loss reserves other than estimated credit losses. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from warranty reserves. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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