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DEBT OBLIGATIONS - Principal installments (Details) - USD ($) $ in Thousands	Dec. 27, 2019	Dec. 28, 2018
DEBT OBLIGATIONS
2020	$ 13,720
2021	38,007
2022	32,667
2023	32,667
Thereafter	13,999
Total debt obligations	131,060	$ 71,711
Issuance costs and debt discounts	(709)	(925)
Long-term Debt	$ 130,351	$ 70,786

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Amount, after accumulated amortization, of debt issuance costs classified as current. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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