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ARO ASSET/LIABILITY - ARO Liabilities (Details) - USD ($)
12 Months Ended
Dec. 28, 2019
Dec. 29, 2018
ARO liabilities    
Beginning balance $ 6,269,000 $ 6,166,000
Obligations incurred 21,455,000 103,000
Accretion expense 189,000  
Ending balance 27,913,000 6,269,000
Less current portion 4,200,000 1,017,000
Long-term portion $ 23,713,000 $ 5,252,000