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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2023
Income Tax Disclosure [Abstract]  
Schedule of Provision (Benefit) for Income Taxes The provision (benefit) for income taxes was as follows:
 Year Ended December 31,
(In thousands)202320222021
Current:   
U.S. Federal$284 $318 $773 
State1,134 338 525 
Foreign9,730 7,099 7,204 
Total current11,148 7,755 8,502 
Deferred:   
U.S. Federal418 (3,204)547 
State179 (142)(545)
Foreign(1,079)(38)(1,211)
Total deferred(482)(3,384)(1,209)
Total provision (benefit) for income taxes$10,666 $4,371 $7,293 
Schedule of Income (Loss) Before Income Taxes Income (loss) before income taxes was as follows:
 Year Ended December 31,
(In thousands)202320222021
U.S.$(1,907)$(38,001)$(36,250)
Foreign27,089 21,538 18,017 
Loss before income taxes$25,182 $(16,463)$(18,233)
Schedule of Effective Income Tax Rate
The effective income tax rate is reconciled to the statutory federal income tax rate as follows:
 Year Ended December 31,
(In thousands)202320222021
Income tax expense (benefit) at federal statutory rate$5,288 $(3,457)$(3,829)
Tax benefit on restructuring of certain subsidiary legal entities— (3,111)— 
Nondeductible executive compensation1,171 958 999 
Other nondeductible expenses455 684 557 
Stock-based compensation(42)880 
Different rates on earnings of foreign operations812 63 (115)
Dividend taxes on unremitted earnings 561 874 980 
U.S. tax on foreign earnings1,121 378 — 
Research and development credits(476)(649)(1,093)
Change in valuation allowance589 8,156 10,416 
State tax expense (benefit), net591 55 (1,302)
Other items, net596 415 (200)
Total provision (benefit) for income taxes$10,666 $4,371 $7,293 
Schedule of Deferred Tax Assets and Liabilities
Temporary differences and carryforwards which give rise to deferred tax assets and liabilities consisted of the following at December 31:
(In thousands)20232022
Deferred tax assets:  
Net operating losses$36,484 $35,430 
Foreign tax credits10,373 8,836 
Accruals not currently deductible4,873 2,989 
Unrealized foreign exchange losses, net5,157 5,353 
Research and development credits5,690 5,181 
Stock-based compensation1,723 1,359 
Capitalized inventory costs508 1,821 
Capitalized research and development expenditures7,110 4,342 
Other5,372 6,551 
Total deferred tax assets77,290 71,862 
Valuation allowance(49,197)(47,280)
Total deferred tax assets, net of allowances28,093 24,582 
Deferred tax liabilities:  
Accelerated depreciation and amortization(27,071)(24,099)
Tax on unremitted earnings(6,208)(5,656)
Other(493)(673)
Total deferred tax liabilities(33,772)(30,428)
Total net deferred tax liabilities$(5,679)$(5,846)
Noncurrent deferred tax assets$2,628 $2,275 
Noncurrent deferred tax liabilities(8,307)(8,121)
Net deferred tax liabilities$(5,679)$(5,846)
Schedule of Income Tax Contingencies
A reconciliation of the beginning and ending provision for uncertain tax positions is as follows: 
(In thousands)202320222021
Balance at January 1$318 $485 $213 
Additions (reductions) for tax positions of prior years(8)(6)
Additions (reductions) for tax positions of current year20 — 306 
Reductions for settlements with tax authorities— (93)— 
Reductions for lapse of statute of limitations(94)(66)(28)
Balance at December 31$247 $318 $485