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Income Taxes (Tables)

12 Months Ended

Dec. 27, 2025

Income Tax Disclosure [Abstract]

Schedule of Components of Income Before Income Taxes

The components of income before income taxes were as follows (in thousands):

			Fiscal Year Ended
			December 27, 2025						December 28, 2024						December 30, 2023
United States			$	48,817					$	66,953					$	(10,681)
Foreign			20,574						12,459						99,948
			$	69,391					$	79,412					$	89,267

Schedule of Components of Provision for Income Taxes

The components of the provision for income taxes are as follows (in thousands):

			Fiscal Year Ended
			December 27, 2025						December 28, 2024						December 30, 2023
Current provision:
Federal			$	4,585					$	15,688					$	8,970
State			647						1,703						835
Foreign			5,845						5,762						9,175
			11,077						23,153						18,980
Deferred provision (benefit):
Federal			2,699						(11,446)						(10,810)
State			(657)						(1,806)						(330)
Foreign			(115)						(103)						(960)
			1,927						(13,355)						(12,100)
Total provision for income taxes:
Federal			7,284						4,242						(1,840)
State			(10)						(103)						505
Foreign			5,730						5,659						8,215
			$	13,004					$	9,798					$	6,880

Schedule of Effective Income Tax Rate Reconciliation

The following is a reconciliation of the difference between income taxes computed by applying the federal statutory rate of 21% and the provision from income taxes for fiscal 2025, 2024, and 2023 (dollars in thousands):

			Fiscal Year Ended
			December 27, 2025												December 28, 2024												December 30, 2023
			Amount						Percent						Amount						Percent						Amount						Percent
U.S. statutory federal tax			$	14,572					21.0		%				$	16,676					21.0		%				$	18,746					21.0		%
State taxes and credits, net of federal benefit (1)			(1,457)						(2.1)						(1,309)						(1.6)						(891)						(1.0)
Foreign tax effects:
Germany:
Foreign taxes at rates different than the U.S.			1,657						2.4						1,099						1.4						8,615						9.7
Foreign gain exclusion			—						—						—						—						(21,568)						(24.2)
Other			(274)						(0.4)						800						1.0						24						—
China:
Reversal of book gain/loss on China Sale			—						—						1,072						1.4						—						—
Foreign Tax on China Sale			—						—						2,395						3.0						—						—
Other			—						—						(129)						(0.2)						21						—
Other foreign jurisdictions			405						0.6						281						0.4						657						0.8
Effects of cross-border tax laws:
Global intangible low-taxed income			—						—						660						0.8						4,783						5.4
Foreign-derived intangible income			(1,515)						(2.2)						(3,774)						(4.8)						(2,986)						(3.3)
Other			(18)						—						(26)						—						(19)						—
Tax credits:
Research tax credits			(5,858)						(8.3)						(4,857)						(6.1)						(7,406)						(8.3)
Other credits			(240)						(0.3)						(241)						(0.3)						(306)						(0.3)
Changes in valuation allowance			(160)						(0.2)						(196)						(0.2)						181						0.2
Nontaxable or nondeductible items:
Equity compensation			850						1.2						(2,833)						(3.6)						1,424						1.6
Officer's compensation			964						1.4						2,258						2.8						296						0.3
Reversal of book gain/loss on China sale			—						—						(4,790)						(6.0)						—						—
Other			421						0.6						212						0.3						432						0.5
Changes in unrecognized tax benefits			3,745						5.4						2,669						3.4						5,107						5.7
Other adjustments			(88)						(0.4)						(169)						(0.4)						(230)						(0.4)
Total			$	13,004					18.7		%				$	9,798					12.3		%				$	6,880					7.7		%

(1) State taxes in Oregon made up the majority (greater than 50%) of the tax effect in this category for 2023-2025.

Schedule of Deferred Tax Assets and Liabilities

Significant deferred tax assets and liabilities consisted of the following (in thousands):

			As of
			December 27, 2025						December 28, 2024
Tax credits			$	33,886					$	31,196
Inventory reserve			12,126						12,818
Other reserves and accruals			11,168						10,600
Non-statutory stock options			1,905						2,213
Lease liability			3,481						4,857
Research and development expenditures capitalization			63,372						65,520
Net operating loss carryforwards			17,125						17,295
Gross deferred tax assets			143,063						144,499
Valuation allowance			(50,418)						(47,938)
Total deferred tax assets			92,645						96,561
Right-of-use assets			(2,803)						(4,104)
Acquired intangibles and fixed assets			(1,918)						(445)
Total deferred tax liabilities			(4,721)						(4,549)
Net deferred tax assets			$	87,924					$	92,012

Summary of Tax Credit Carryforwards

Tax credits and carryforwards available to us at December 27, 2025 consisted of the following (in thousands):

						Amount						Expiration Date(s)
Federal research and development tax credit						$	12,042					2043-2045
Foreign tax credit carryforwards						592						2026-2027
California research credits						66,627						Indefinite
State net operating loss carryforwards						239,068						2026-Indefinite
Singapore net operating loss carryforwards						2,900						Indefinite

Schedule of Unrecognized Tax Benefits

The following table reflects changes in the unrecognized tax benefits (in thousands):

			Fiscal Year Ended
			December 27, 2025						December 28, 2024						December 30, 2023
Unrecognized tax benefit, beginning balance			$	48,364					$	45,574					$	40,098
Additions based on tax positions related to the current year			3,504						3,813						4,726
Additions based on tax positions from prior years			163						—						858
Reductions for tax positions of prior years			(7)						(990)						—
Reductions due to lapse of the applicable statute of limitations			(36)						(33)						(108)
Unrecognized tax benefit, ending balance			$	51,988					$	48,364					$	45,574
Interest and penalties recognized as a component of provision (benefit) for income taxes			$	728					$	205					$	34
Interest and penalties accrued at period end			997						269						63

Schedule of Cash Flow, Supplemental Disclosures

Income taxes paid, net of refunds received, by jurisdiction are as follows (in thousands):

			Fiscal Year Ended
			December 27, 2025						December 28, 2024						December 30, 2023
US federal			$	1,859					$	2,246					$	4,184
Domestic state and local
Oregon			*						1,229						*
Other			605						339						304
Foreign
Germany - Federal			3,093						4,332						7,152
Germany - Thiendorf			2,149						3,911						3,087
Germany - Bergisch Gladbach			*						*						1,765
China			*						2,120						*
Other			1,226						1,407						893
Total			$	8,932					$	15,584					$	17,385

* The amount of income taxes paid during the year does not meet the five percent disaggregation threshold.

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