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Income Taxes
 12 Months Ended
Mar. 31, 2025
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
United States income (loss) before income tax expense was $(44,297,000), $20,464,000, and $26,076,000 for the years ended March 31, 2025, 2024, and 2023, respectively. Income before income tax expense also includes foreign subsidiary income of $38,791,000, $41,063,000, and $48,399,000 for the years ended March 31, 2025, 2024, and 2023, respectively.
The provision for income taxes differs from the amount computed by applying the statutory federal income tax rate to income from continuing operations before income tax expense. The sources and tax effects of the differences were as follows:
 
 Year Ended March 31,
 202520242023
Statutory federal income tax rate (1)21.00 %21.00 %21.00 %
Expected tax expense (benefit) at statutory rate$(1,156)$12,921 $15,640 
State income taxes net of federal benefit(514)652 2,719 
Foreign taxes at rates other than statutory federal rate(431)(247)1,757 
Employee benefits483 1,347 1,207 
US benefit on foreign derived income(259)(686)(477)
US Tax on foreign earnings379 757 1,257 
Permanent items (4)421 694 168 
Valuation allowance (3)181 (1,109)(787)
Federal tax credits(1,002)(1,384)(1,539)
Other (3)(28)1,437 285 
Tax audit adjustments (2)— (819)2,523 
Unremitted earnings 397 501 720 
Reversal of stranded tax effects from AOCI961 (22)— 
Interest income from tax refunds(505)— — 
Non-deductible interest286 420 119 
Transfer pricing adjustments600 — — 
Return to provision adjustment (180)440 2,454 
Actual tax provision expense$(367)$14,902 $26,046 
(1) Fiscal year 2024 and 2023 table amounts have been adjusted to be consistent with individual rate reconciling items disclosed for fiscal 2025.
(2) For fiscal 2023, the Company settled income tax assessments related to tax periods prior to the Company's acquisition of STAHL. In accordance with the tax indemnification clause of the share purchase agreement, the Company received full reimbursement from STAHL’s prior owner which was recorded as a gain in Other (income) expense, net. For fiscal 2024, the Company collected tax refunds related to a period prior to the Company's acquisition of STAHL. In accordance with
the tax indemnification clause of the share purchase agreement, the Company will reimburse STAHL’s prior owner which was recorded as an loss in Other (income) expense, net.
(3) For fiscal 2024, the Company wrote off $1,142,000 of tax attributes as a result of legal entity simplification.The tax attributes had an associated valuation allowance of $1,142,000 which was also written off in fiscal 2024.
(4) For fiscal 2024, a tax impact of $525,000 from non-deductible transaction costs was incurred as part of the montratec GmbH acquisition.

The provision for income tax expense (benefit) consisted of the following:
 Year Ended March 31,
 202520242023
Current income tax expense (benefit):
United States Federal$6,843 $15,375 $7,772 
State taxes850 2,715 2,218 
Foreign12,226 12,097 16,356 
Deferred income tax expense (benefit):
United States(17,411)(12,451)(517)
Foreign(2,875)(2,834)217 
 $(367)$14,902 $26,046 

The Company applies the liability method of accounting for income taxes as required by ASC Topic 740, “Income Taxes.” The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities are as follows:
 March 31,
 20252024
Deferred tax assets (1):
Federal net operating loss carryforwards$10,649 $11,779 
State and foreign tax loss and credit carryforwards8,992 9,354 
Employee benefit plans9,624 12,203 
Inventory4,243 3,853 
Insurance reserves3,060 3,301 
Accrued vacation and incentive costs2,943 3,929 
Federal tax credit carryforwards12,080 12,094 
ASC 842 Lease Liability19,996 20,120 
Equity compensation5,309 5,247 
Capitalized Research and Development Costs15,069 12,029 
Interest Carryforwards10,411 5,657 
Other341 — 
Valuation allowance(15,802)(15,156)
Deferred tax assets after valuation allowance86,915 84,410 
Deferred tax liabilities:
Property, plant, and equipment(5,909)(7,525)
ASC 842 Right-of-Use Asset(16,807)(18,509)
Intangible assets(88,275)(96,494)
Other— (535)
Unremitted earnings(1,322)— 
Total deferred tax liabilities(112,313)(123,063)
Net deferred tax assets (liabilities)$(25,398)$(38,653)
(1) Fiscal year 2024 table amounts have been adjusted to be consistent with individual deferred tax items disclosed for fiscal 2025.

The valuation allowance includes $1,151,000 and $989,000 primarily related to foreign net operating losses at March 31, 2025 and 2024, respectively. The valuation allowance also includes $2,571,000 and $2,091,000 for state net operating losses at March 31, 2025 and 2024, respectively. The remaining valuation allowance primarily relates to foreign tax credits which the Company believes it will not utilize of $12,080,000 and $12,076,000 for the years ended March 31, 2025 and 2024, respectively.

The Company’s foreign subsidiaries have tax-effected net operating loss carryforwards of $4,648,000 that expire in periods ranging from five years to indefinite. Federal net operating loss carryforwards of $50,711,000 remain from the acquisition of Magnetek, have expiration dates ranging from fiscal 2026 through 2036, and are subject to certain limitations under U.S. tax law. State net operating losses of $59,159,000 either have indefinite carryforward periods or have expiration dates ranging from fiscal 2026 through 2045.  The federal tax credits have expiration dates ranging from fiscal 2029 to 2034. Included in the State and foreign net operating loss and credit carryforwards category above are $1,221,000 of state tax credit carryforwards. These state tax credit carryforwards have expiration dates ranging from fiscal 2026 to 2039.

Deferred income taxes are classified within the consolidated balance sheets based on the following breakdown:

 March 31,
 20252024
Net non-current deferred tax assets$2,904 $1,797 
Net non-current deferred tax liabilities(28,302)(40,450)
Net deferred tax assets (liabilities)$(25,398)$(38,653)

Net non-current deferred tax liabilities are included in other non-current liabilities.

As of March 31, 2025, the Company has determined that certain foreign amounts, which can be distributed tax efficiently, are not permanently reinvested where earned. As of March 31, 2025, a tax liability of approximately $1,322,000 has been accrued for taxes that would be incurred upon repatriation of the earnings that are not permanently reinvested. As of March 31, 2025, $79,490,000 of unremitted earnings of other subsidiaries and outside basis differences other than unremitted earnings are intended to be permanently reinvested.  It is not practicable to calculate the amount of unrecognized deferred tax related to these basis differences.
 
Changes in the Company’s uncertain income tax positions, excluding the related accrual for interest and penalties, are as follows:
 202520242023
Beginning balance$411 $411 $414 
Additions for prior year tax positions563 — — 
Foreign currency translation25 — (3)
Ending balance$999 $411 $411 

The Company had $96,000, $76,000, and $68,000 accrued for the payment of interest and penalties at March 31, 2025, 2024, and 2023 respectively. The Company recognizes interest expense or penalties related to uncertain tax positions as a part of income tax expense in its consolidated statements of operations. $999,000 of the unrecognized tax benefits as of March 31, 2025 would impact the effective tax rate if recognized. It is reasonably possible that the amount of unrecognized tax benefits could change in the next 12 months, however an estimate of the change cannot be made.

The Company and its subsidiaries file income tax returns in the U.S., various state, local, and foreign jurisdictions. The Company’s major tax jurisdictions are the United States and Germany.  With few exceptions, the Company is no longer subject to tax examinations by tax authorities in the United States for tax years prior to March 31, 2022 and in Germany for tax years prior to March 31, 2012. The Company has a current tax examination in Germany underway for fiscal years 2012 through 2021.
The Inflation Reduction Act ("IRA") was enacted in fiscal year 2023 and includes the implementation of a new 15% minimum tax on book income of certain large corporations, an excise tax on stock buybacks, and various tax credits and incentives for energy and clean climate initiatives, among other provisions. The Company has evaluated the IRA and its provisions did not have a material impact to the Company's consolidated financial statements for fiscal 2024 or 2025.

On December 15, 2022, the European Union (EU) Member States formally adopted the EU’s Pillar Two Directive, which generally provides for a minimum effective tax rate of 15%, as established by the Organization for Economic Co-operation and Development (OECD) Pillar Two Framework. A significant number of other countries are expected to also implement similar legislation with varying effective dates in the future. Pillar Two legislation became effective for the Company during fiscal 2025 and the impact to current year tax expense was immaterial.