Significant Accounting Policies	6 Months Ended
Jun. 28, 2025
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]	1. Significant Accounting Policies Basis of Presentation These interim consolidated financial statements of SunOpta Inc. (the "Company" or "SunOpta") have been prepared in accordance with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X promulgated under the Securities Exchange Act of 1934, as amended, and in accordance with United States ("U.S.") generally accepted accounting principles ("U.S. GAAP") for interim financial information. Accordingly, these condensed interim consolidated financial statements do not include all of the disclosures required by U.S. GAAP for annual financial statements. In the opinion of management, all adjustments considered necessary for the fair presentation of the interim periods presented have been included, and all such adjustments are of a normal, recurring nature. Operating results for the quarter and two quarters ended June 28, 2025 are not necessarily indicative of the results that may be expected for the full fiscal year ending January 3, 2026 or for any other period. The interim consolidated financial statements include the accounts of the Company and its subsidiaries and have been prepared on a basis consistent with the annual consolidated financial statements for the year ended December 28, 2024. For further information, refer to the consolidated financial statements, and notes thereto, included in the Company's Annual Report on Form 10-K for the fiscal year ended December 28, 2024 (the "2024 Form 10-K"). Fiscal Year The fiscal year of the Company consists of a 52- or 53-week period ending on the Saturday closest to December 31. Fiscal year 2025 is a 53-week period ending on January 3, 2026, with quarterly periods ending on March 29, 2025, June 28, 2025 and September 27, 2025. Fiscal 2024 was a 52-week period ending on December 28, 2024, with quarterly periods ending on March 30, 2024, June 29, 2024 and September 28, 2024. Recent Accounting Pronouncements In December 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires public entities, on an annual basis, to provide disclosure of specific categories in the rate reconciliation, as well as disclosure of income taxes paid disaggregated by jurisdiction. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024. ASU 2023-09 will be effective for the Company for its 2025 fiscal year ending January 3, 2026. The Company is currently evaluating the potential effect that ASU 2023-09 will have on its financial statement disclosures. In November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires disclosure, in the notes to financial statements, of specified information about certain costs and expenses. ASU 2024-03 will be effective for annual periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027. Early adoption is permitted. The Company is currently evaluating the potential effect that ASU 2024-03 will have on its financial statement disclosures.

1. Significant Accounting Policies

Basis of Presentation

These interim consolidated financial statements of SunOpta Inc. (the "Company" or "SunOpta") have been prepared in accordance with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X promulgated under the Securities Exchange Act of 1934, as amended, and in accordance with United States ("U.S.") generally accepted accounting principles ("U.S. GAAP") for interim financial information. Accordingly, these condensed interim consolidated financial statements do not include all of the disclosures required by U.S. GAAP for annual financial statements. In the opinion of management, all adjustments considered necessary for the fair presentation of the interim periods presented have been included, and all such adjustments are of a normal, recurring nature. Operating results for the quarter and two quarters ended June 28, 2025 are not necessarily indicative of the results that may be expected for the full fiscal year ending January 3, 2026 or for any other period. The interim consolidated financial statements include the accounts of the Company and its subsidiaries and have been prepared on a basis consistent with the annual consolidated financial statements for the year ended December 28, 2024. For further information, refer to the consolidated financial statements, and notes thereto, included in the Company's Annual Report on Form 10-K for the fiscal year ended December 28, 2024 (the "2024 Form 10-K").

Fiscal Year

The fiscal year of the Company consists of a 52- or 53-week period ending on the Saturday closest to December 31. Fiscal year 2025 is a 53-week period ending on January 3, 2026, with quarterly periods ending on March 29, 2025, June 28, 2025 and September 27, 2025. Fiscal 2024 was a 52-week period ending on December 28, 2024, with quarterly periods ending on March 30, 2024, June 29, 2024 and September 28, 2024.

Recent Accounting Pronouncements

In December 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires public entities, on an annual basis, to provide disclosure of specific categories in the rate reconciliation, as well as disclosure of income taxes paid disaggregated by jurisdiction. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024. ASU 2023-09 will be effective for the Company for its 2025 fiscal year ending January 3, 2026. The Company is currently evaluating the potential effect that ASU 2023-09 will have on its financial statement disclosures.

In November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires disclosure, in the notes to financial statements, of specified information about certain costs and expenses. ASU 2024-03 will be effective for annual periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027. Early adoption is permitted. The Company is currently evaluating the potential effect that ASU 2024-03 will have on its financial statement disclosures.