Note 15 — Income Taxes

The amounts of income (loss) before income taxes attributable to domestic and foreign operations were as follows:

Year ended December 31,

  ​ ​ ​

2025

  ​ ​ ​

2024

  ​ ​ ​

2023

(in thousands)

Domestic

$

35,728

$

99,711

$

(33,383)

Foreign

 

3,659

 

(30,877)

 

5,045

Total

$

39,387

$

68,834

$

(28,338)

Significant components of the expense (benefit) for income taxes consisted of the following:

Year ended December 31,

  ​ ​ ​

2025

  ​ ​ ​

2024

  ​ ​ ​

2023

(in thousands)

Current:

Federal

$

4,313

$

2,087

$

3,299

Foreign

 

2,723

 

1,365

 

1,136

State and local

 

(57)

 

397

 

(194)

Total current expense (benefit) for income taxes

 

6,979

 

3,849

 

4,241

Deferred:

Federal

 

(1,187)

 

(1,599)

 

(3,026)

Foreign

 

(1,216)

 

(6,684)

 

512

State and local

 

(579)

 

(446)

 

303

Total deferred expense (benefit) for income taxes

 

(2,982)

 

(8,729)

 

(2,211)

Total expense (benefit) for income taxes

$

3,997

$

(4,880)

$

2,030

In December 2023, the FASB issued ASU 2023-09: Improvements to Income Tax Disclosures (Topic 740), which requires public business entities to disclose consistent categories and greater disaggregation of information in the rate reconciliation and for income taxes paid for the annual periods beginning after December 15, 2024. The Company adopted ASU 2023-09 on a retrospective basis effective December 31, 2025 for the years ended December 31, 2025, 2024, and 2023 for comparability and consistency purposes.

The income tax expense (benefit) was reconciled to the tax expense computed at the U.S. federal statutory tax rate as follows:

Year ended December 31,

  ​ ​ ​

2025

  ​ ​ ​

2024

  ​ ​ ​

2023

(in thousands)

U.S. federal statutory income tax rate

$

8,271

21.0

%

$

14,455

21.0

%

$

(5,951)

21.0

%

State taxes, net of U.S. federal impact (a)

(619)

(1.6)

%

(217)

(0.3)

%

305

(1.1)

%

Effect of cross-border tax laws

 

 

 

Foreign-derived intangible income deduction

(5,672)

(14.4)

%

(3,846)

(5.6)

%

(8,171)

28.9

%

Other

159

0.4

%

149

0.2

%

(65)

0.2

%

Tax credits

Research and development tax credits

(3,126)

(7.9)

%

(4,500)

(6.5)

%

(4,650)

16.4

%

Nontaxable and nondeductible items

Tax benefits related to asset impairments

%

(12,476)

(18.1)

%

%

Share-based compensation

3,133

8.0

%

206

0.3

%

1,998

(7.1)

%

Extinguishment of debt

(164)

(0.4)

%

%

19,349

(68.3)

%

Merger costs

1,424

3.6

%

%

%

Other

(152)

(0.4)

%

68

0.1

%

325

(1.2)

%

Changes in valuation allowances

%

(149)

(0.2)

%

350

(1.2)

%

Federal Other

(106)

(0.3)

%

189

0.3

%

(159)

0.6

%

Changes in unrecognized tax benefits

 

121

0.3

%

 

116

0.2

%

 

(1,889)

6.7

%

Foreign tax effects

 

 

 

Sweden

 

 

 

Changes in valuation allowances

518

1.3

%

744

1.1

%

%

Provision to return

(511)

(1.3)

%

%

%

Other

(72)

(0.2)

%

352

0.5

%

18

(0.1)

%

Germany

Subnational tax

(559)

(1.4)

%

6

0.0

%

399

(1.4)

%

Other

247

0.6

%

43

0.1

%

(263)

0.9

%

Taiwan

Other

441

1.1

%

23

0.0

%

235

(0.8)

%

China

Other

232

0.6

%

165

0.2

%

170

(0.6)

%

Japan

Other

313

0.8

%

(186)

(0.3)

%

(19)

0.1

%

Other foreign jurisdictions

119

0.4

%

(22)

(0.1)

%

48

(0.2)

%

Total provision (benefit) for income taxes

$

3,997

10.2

%

$

(4,880)

(7.1)

%

$

2,030

(7.2)

%

(a)For the years ended December 31, 2025, New Mexico made up the majority of the state tax effect. For the year ended December 31, 2024, Oregon, California, and Arizona made up the majority of the state tax effect. For the year ended December 31, 2023, Pennsylvania, New Mexico, Minnesota, Oregon, California, and New York made up the majority of the state tax effect.

Deferred income taxes reflect the effect of temporary differences between the carrying amounts of assets and liabilities recognized for financial reporting purposes and the amounts recognized for tax purposes. The tax effects of the temporary differences were as follows:

December 31,

  ​ ​ ​

2025

  ​ ​ ​

2024

(in thousands)

Deferred tax assets: 

Inventory valuation

 

$

14,892

$

12,500

Net operating losses

7,123

 

6,734

Credit carry forwards

38,998

46,753

Warranty and installation accruals

2,267

 

2,054

Share-based compensation

5,829

 

5,802

Contract liabilities

10,216

7,775

Operating leases

8,196

8,620

Research and experimental capitalization

53,309

46,667

Depreciation

5,816

4,037

Other

4,197

 

5,033

Total deferred tax assets

150,843

 

145,975

Valuation allowance

(13,046)

 

(11,797)

Net deferred tax assets

137,797

 

134,178

Deferred tax liabilities: 

Purchased intangible assets

9,759

 

8,673

Operating leases

5,635

6,003

Total deferred tax liabilities

15,394

 

14,676

Net deferred taxes

 

$

122,403

$

119,502

The Company does not permanently reinvest its earnings from certain foreign jurisdictions and has accrued for foreign tax withholdings of $1.1 million on its unremitted earnings as of December 31, 2025.

During the year ended December 31, 2025, the Company’s income tax expense of $4.0 million was primarily attributed to 1) a $8.3 million income tax expense associated with pre-tax income from operations, 2) a $3.1 million income tax expense related to adjustments made for share-based compensation, and 3) a $1.4 million income tax expense related to non-deductible merger costs, partially offset by 4) a $5.7 million income tax benefit related to foreign-derived intangible income, and 5) a $3.6 million tax benefit associated with research and development tax credits.

At December 31, 2025, the Company had U.S. federal research and development credits of $28.3 million that will expire between 2040 and 2045. Additionally, the Company has state and local NOL carryforwards of approximately $52.9 million (a net deferred tax asset of $3.8 million, net of federal tax benefits and before the valuation allowance) that will expire between 2026 and 2041. Finally, the Company has state credits of $34.6 million, some of which are indefinite and others that will expire between 2026 and 2040.

A roll-forward of the Company’s uncertain tax positions for all U.S. federal, state, and foreign tax jurisdictions was as follows:

December 31,

  ​ ​ ​

2025

  ​ ​ ​

2024

  ​ ​ ​

2023

(in thousands)

Balance at beginning of year

$

16,878

$

15,741

$

16,110

Additions for tax positions related to current year

 

1,681

 

2,497

 

2,596

Additions for tax positions related to prior years

 

52

 

77

 

83

Reductions for tax positions related to prior years

 

(131)

 

(1,437)

 

(3,048)

Settlements

 

 

 

Balance at end of year

$

18,480

$

16,878

$

15,741

If the amount of unrecognized tax benefits at December 31, 2025 were recognized, the Company’s income tax provision would decrease by $16.3 million. The gross amount of interest and penalties accrued in income tax payable in the Consolidated Balance Sheets was approximately $0.8 million and $0.7 million at December 31, 2025 and 2024, respectively.

The Company, or one of its subsidiaries, files income tax returns in the United States federal jurisdiction, and various state, local, and foreign jurisdictions. All material consolidated federal income tax matters have been concluded for years through 2017 subject to subsequent utilization of NOLs generated in such years. All material state and local income tax matters have been reviewed through 2012. The majority of the Company’s foreign jurisdictions have been reviewed through 2015. The Company’s major foreign jurisdictions’ statutes of limitation remain open with respect to the tax years 2016 through 2024 for Germany, 2017 through 2024 for China, 2024 for Taiwan, and 2021 through 2024 for Singapore.

The amount of income taxes paid (refunded) were as follows:

Year ended December 31,

  ​ ​ ​

2025

  ​ ​ ​

2024

  ​ ​ ​

2023

(in thousands)

U.S. federal taxes paid, net

$

*

$

1,045

$

2,801

Domestic state and local taxes paid, net

New Mexico

 

*

 

 

282

Oregon

 

*

 

*

 

474

Other

 

*

 

237

 

374

Total state taxes paid, net

237

1,130

Foreign

 

 

 

China

 

*

 

390

 

*

Germany

 

 

 

Federal

 

*

 

719

 

*

Subnational

*

180

*

Japan

*

253

*

Singapore

*

153

*

Taiwan

*

*

546

Other

*

57

618

Total foreign taxes paid, net

1,752

1,164

Total income taxes paid, net

$

**

$

3,034

$

5,095

*The amount of income taxes paid during the year does not meet the five percent disaggregation threshold in the respective period.
**The total amount of income taxes paid during the year is not material to the financial statements.

About Income Taxes Disclosures

The income tax disclosure reveals how much a company actually pays in taxes versus what the statutory rate would predict. Analysts focus on the effective tax rate (ETR) reconciliation, which breaks down every item driving the gap between the 21% federal rate and the company's reported ETR — including R&D credits, foreign rate differentials, and state taxes. Deferred tax assets (DTAs) and their valuation allowances signal management's confidence in future profitability: a rising allowance suggests the company doubts it can use accumulated tax benefits. Uncertain tax benefit (UTB) reserves quantify exposure to IRS challenges on aggressive positions.

Key signals to watch: sudden ETR drops without clear operational reasons, large increases in valuation allowances, growing UTB balances, and significant unremitted foreign earnings. Post-TCJA, pay attention to GILTI and BEAT provisions that affect multinational tax structures. Compare the cash taxes paid (from the cash flow statement) against the income tax provision to gauge earnings quality.