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DEBT (Schedule of Long Term Debt) (Details) - USD ($)
 12 Months Ended
Dec. 30, 2018
Dec. 31, 2017
Debt Instrument [Line Items]    
Document Period End Date Dec. 30, 2018  
Credit Agreement | Long-term Debt | Texas Capital Bank, National Association (TCB)    
Debt Instrument [Line Items]    
Long-Term Debt, Gross, Initial Borrowing $ 1,121,000 $ 687,500
Interest rate, Initial Borrowing Amount 6.50% 5.50%
Long-Term Debt, Gross, Second Borrowing Amount $ 6,500,000 $ 6,500,000
Interest rate, Second Borrowing Amount 5.40% 4.30%
Long-Term Debt, Gross, Third Borrowing Amount $ 2,500,000 $ 6,500,000
Interest rate, Third Borrowing Amount 5.40% 4.40%
Long-Term Debt, Gross, Fourth Borrowing Amount $ 0 $ 6,000,000
Interest rate, Fourth Borrowing Amount 0.00% 4.50%
Long-Term Debt, Gross, Fifth Borrowing Amount $ 0 $ 4,200,000
Interest Rate, Fifth Borrowing Amount 0.00% 4.64%
Long-term Debt, Gross $ 10,121,000 $ 23,887,500