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NATURE OF ACTIVITIES AND SIGNIFICANT ACCOUNTING POLICIES (Details) - Deferred Revenue, by Arrangement, Disclosure - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Deferred Revenue, by Arrangement, Disclosure [Abstract]    
Balance $ 2,917,676 $ 499,776
Cash payments received 591,886 200,300
Net sales recognized (2,376,151) (341,620)
Balance $ 1,133,411 $ 358,456