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LEASES - Narrative (Details)
3 Months Ended 9 Months Ended
Sep. 29, 2019
USD ($)
Sep. 29, 2019
USD ($)
Leases [Abstract]    
Operating lease, weighted average remaining lease term (years) 4 years 2 months 12 days 4 years 2 months 12 days
Operating lease, weighted average discount rate, percent 5.60% 5.60%
Operating lease, payments $ 405,332 $ 1,215,848
Operating lease, cost 399,828 1,138,542
Short-term lease, cost $ 187,934 $ 532,621