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DEBT (Details Textual)
3 Months Ended 9 Months Ended
Jul. 16, 2019
USD ($)
request
Apr. 03, 2017
USD ($)
Sep. 29, 2019
USD ($)
Sep. 30, 2018
USD ($)
Sep. 29, 2019
USD ($)
Sep. 30, 2018
USD ($)
Dec. 30, 2018
USD ($)
Debt Instrument [Line Items]              
Loss on extinguishment of debt     $ 540,705 $ 0 $ (540,705) $ 0  
Line of credit facility, average outstanding amount     21,000,000.0 $ 13,300,000 15,300,000 $ 17,100,000  
Texas Capital Bank, National Association (TCB)              
Debt Instrument [Line Items]              
Loss on extinguishment of debt $ 500,000            
Credit Agreement | BMO Harris Bank, N.A.              
Debt Instrument [Line Items]              
Line of credit facility, current borrowing capacity 20,000,000            
Credit Agreement | BMO Harris Bank, N.A. | Revolving Credit Facility              
Debt Instrument [Line Items]              
Line of credit facility, maximum borrowing capacity 35,000,000            
Credit Agreement | Texas Capital Bank, National Association (TCB) | Revolving Credit Facility              
Debt Instrument [Line Items]              
Long-term line of credit     $ 20,553,651   $ 20,553,651   $ 10,650,289
Amended Credit Agreement | Revolving Credit Facility              
Debt Instrument [Line Items]              
Line of credit facility, maximum borrowing capacity   $ 35,000,000.0          
Line of credit facility, borrowing capacity, percentage   85.00%          
Term Loan | Credit Agreement | BMO Harris Bank, N.A.              
Debt Instrument [Line Items]              
Long term debt $ 30,000,000            
Number of requests to increase term loan | request 2            
Line of credit facility, maximum increase $ 40,000,000            
Line of credit facility, minimum increase $ 10,000,000            
Amended Credit Agreement              
Debt Instrument [Line Items]              
Line of credit facility, maximum borrowing capacity   $ 55,000,000.0          
Senior Notes | Term Loan              
Debt Instrument [Line Items]              
Long term debt   $ 20,000,000.0