INCOME TAXES - Components of deferred tax assets and liabilities (Details) - USD ($) $ in Thousands	Dec. 28, 2019	Dec. 29, 2018
Deferred tax assets:
Accrued liabilities	$ 4,482	$ 3,943
Allowances and other reserves	2,030	1,683
Inventory	1,929	5,472
Stock-based compensation	4,761	14,085
Operating lease liabilities	12,286
Deferred rent	0	2,657
Deferred interest	1,703	0
Other	1,497	1,719
Total deferred tax assets	28,688	29,559
Deferred tax liabilities:
Operating lease assets	(9,528)
Prepaid expenses	(1,897)	(782)
Property and equipment	(10,971)	(8,433)
Intangible assets	(13,546)	(11,857)
Other	(744)	(710)
Total deferred tax liabilities	(36,686)	(21,782)
Net deferred tax (liabilities) assets	7,998
Net deferred tax (liabilities) assets		7,777
Deferred income taxes	1,082	$ 7,777
Other liabilities	(9,080)
Unremitted earnings of foreign subsidiaries	$ 2,000