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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Changes In The Allowance For Credit Losses (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 27, 2020
Sep. 29, 2019
Sep. 27, 2020
Sep. 29, 2019
Accounts Receivable, Allowance for Credit Loss [Roll Forward]        
Beginning balance $ 468,233 $ 468,233 $ 468,233 $ 468,233
EdgeRock Technology Holdings, Inc. (“EdgeRock”) acquisition 0 0 47,498 0
Provision for credit losses, net 53,896 34,667 153,805 6,065
Amounts written off, net (45,142) (34,667) (192,549) (6,065)
Ending balance $ 476,987 $ 468,233 $ 476,987 $ 468,233