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LEASES - Maturities of lease liabilities (Details) - USD ($) $ in Thousands | Dec. 27, 2019 | Dec. 28, 2018
--- | --- | ---
Operating |  |
2020 | $ 6,418 |
2021 | 5,680 |
2022 | 4,891 |
2023 | 3,425 |
2024 | 2,498 |
2025 and thereafter | 4,530 |
Total lease payments | 27,442 |
Less: Imputed interest | (3,481) |
Total lease obligations | 23,961 |
Lease liability | 5,550 |
Noncurrent lease obligations | 18,411 |
Finance |  |
2020 | 394 |
2021 | 178 |
2022 | 17 |
Total lease payments | 589 |
Less: Imputed interest | (23) |
Total lease obligations | 566 |
Finance lease obligations | 375 | $ 320
Finance lease obligations, less current portion | $ 191 | $ 224

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