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ACQUISITIONS (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Feb. 08, 2021
Feb. 03, 2020
Jun. 27, 2021
Jun. 28, 2020
Jun. 27, 2021
Jun. 28, 2020
Business Acquisition [Line Items]            
Contingent consideration     $ 3,164,248   $ 3,164,248  
Effective income tax rate reconciliation, percent     16.00% 25.90% 16.10% 22.80%
EdgeRock Technology Holdings, Inc            
Business Acquisition [Line Items]            
Percentage acquired   100.00%        
Initial cash paid for acquisition   $ 21,000,000.0        
Pro forma revenue       $ 9,800,000   $ 16,300,000
Pro forma net income       $ 300,000   600,000
Acquisition related costs           $ 500,000
Momentum Solutionz            
Business Acquisition [Line Items]            
Initial cash paid for acquisition $ 3,800,000          
Pro forma revenue     $ 800,000   $ 1,200,000  
Pro forma net income     $ 100,000   200,000  
Acquisition related costs         $ 200,000  
Contingent consideration $ 2,200,000          
Business combination, period of contingency 2 years          
Revolving Credit Facility | Pro Forma            
Business Acquisition [Line Items]            
Line of credit facility, interest rate during period         2.40%