INCOME TAXES (Schedule of Income Tax Expense) (Detail) - USD ($)	12 Months Ended
	Dec. 27, 2020	Dec. 29, 2019	Dec. 30, 2018
Income Tax Disclosure [Abstract]
Current federal income tax	$ 2,006,145	$ 2,380,289	$ 1,568,308
Current state income tax	919,966	1,125,539	759,915
Deferred income tax (credit)	(2,413,019)	799,150	1,531,516
Income tax expense	$ 513,092	$ 4,304,978	$ 3,859,739