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Note 8 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Operating lease impairment adjustment upon the adoption of ASU 2016-02 "Leases", tax | $ 33,916 | $ 14,427
Discontinued Operation, Tax Effect of Discontinued Operation, Total | $ 0 | $ 400
Effective Income Tax Rate Reconciliation, Percent, Total | 21.20% | 22.00%
Effective Income Tax Rate Continuing Operations Change | (2.80%) |
Effective Income Tax Rate Reconciliation, Tax Law Change, Percent | 0.00% | (2.80%)
Effective Income Tax Rate Reconciliation, CARES Act, Amount | $ 4,500 | $ 1,700
Deferred Income Tax Liabilities, Net, Total | 28,306 | 0
Deferred Income Tax Assets, Net, Total | 0 | 7,872
Tax Credit Carryforward, Valuation Allowance | 4,700 |
Unrecognized Tax Benefits, Uncertainty on Timing | 0 | 1,600
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total | (200) | 200
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total | 0 | $ 200
Effective Income Tax Rate Reconciliation, Lapses of Applicable Statute of Limitations, Amount | 400 |
California Franchise Tax Board [Member] |  |
Tax Credit Carryforward, Amount | 1,500 |
New York State Division of Taxation and Finance [Member] |  |
Tax Credit Carryforward, Amount | 2,100 |
Wisconsin Department of Revenue [Member] |  |
Tax Credit Carryforward, Amount | $ 2,300 |

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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to CARES act. + References No definition available. + Details
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- Definition Percentage of the difference, between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, that is attributable to tax law change. + References No definition available. + Details
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