XML 119 R106.htm IDEA: XBRL DOCUMENT
v3.26.1

Basic and Diluted Net Loss Per Share - Schedule of Potential Common Shares Excluded from Computation of Diluted Net Loss Per Share of Common Stock (Details) - shares | 12 Months Ended
--- | ---
Dec. 28, 2025 | Dec. 29, 2024
Schedule of Potential Common Shares Excluded from Computation of Diluted Net Loss Per Share of Common Stock [Line Items] |  |
Potential common shares excluded from diluted net loss per share | 105,153,845 | 64,778,154
Common stock warrants [Member] |  |
Schedule of Potential Common Shares Excluded from Computation of Diluted Net Loss Per Share of Common Stock [Line Items] |  |
Potential common shares excluded from diluted net loss per share | 218,847 | 25,434,069
Convertible notes [Member] |  |
Schedule of Potential Common Shares Excluded from Computation of Diluted Net Loss Per Share of Common Stock [Line Items] |  |
Potential common shares excluded from diluted net loss per share | 82,460,428 | 27,364,717
Stock options and RSUs Issued and Outstanding [Member] |  |
Schedule of Potential Common Shares Excluded from Computation of Diluted Net Loss Per Share of Common Stock [Line Items] |  |
Potential common shares excluded from diluted net loss per share | 8,084,064 | 11,979,368
Third SAFE Agreement [Member] |  |
Schedule of Potential Common Shares Excluded from Computation of Diluted Net Loss Per Share of Common Stock [Line Items] |  |
Potential common shares excluded from diluted net loss per share | 2,750,000 |
Deferred Consideration Shares [Member] |  |
Schedule of Potential Common Shares Excluded from Computation of Diluted Net Loss Per Share of Common Stock [Line Items] |  |
Potential common shares excluded from diluted net loss per share | 11,640,506 |

X
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=spwr_CommonStockWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=spwr_ConvertibleNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=spwr_StockOptionsAndRSUsIssuedAndOutstandingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=spwr_ThirdSAFEAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=spwr_DeferredConsiderationSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |