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v3.21.1

Income Taxes (Narrative) (Details) - USD ($) | 12 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2019
Operating Loss Carryforwards [Line Items] |  |  |
Tax Cuts and Jobs Act, Change in Tax Rate, Income Tax Expense (Benefit) |  | $ 525,000 |
Deferred Tax Liability Lease Asset | $ (8,446,000) | (8,938,000) |
Deferred Tax Asset Lease Liability | 8,623,000 | 9,048,000 |
Effective Income Tax Rate Reconciliation, Deduction, Amount | $ 0 | $ 1,029,000 | $ 945,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 21.00% | 21.00%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount | $ 810,000 | $ (2,491,000) | $ (1,663,000)
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount |  |  | 1,500,000
Gross amounts of deferred tax assets | 86,634,000 | 93,401,000 |
Valuation allowance | (15,103,000) | (15,036,000) |
Foreign net operating losses | 10,552,000 |  |
Foreign subsidiary income | 30,894,000 | 37,577,000 | 14,362,000
Undistributed Earnings of Foreign Subsidiaries | 69,000,000 |  |
Income Tax Effects Allocated Directly to Equity, Employee Stock Options | 283,000 | 169,000 |
Amount accrued for the payment of interest and penalties | 57,000 | 46,000 | 38,000
Effective Income Tax Rate Reconciliation, Tax Credit, Amount | (700,000) | (1,903,000) |
Federal tax credits (5) | 700,000 | 800,000 | $ (1,376,000)
Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount |  | 1,103,000 |
Deferred Tax Assets, Tax Credit Carryforwards, Foreign | 11,900,000 | 11,800,000 |
State and foreign net operating loss carryforwards | 7,404,000 | 7,142,000 |
Magnetek [Member] |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration | 76,371,000 |  |
State and foreign net operating loss carryforwards | 77,889,000 |  |
Federal |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Foreign net operating losses | $ 2,896,000 | $ 2,696,000 |

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