Quarterly report pursuant to Section 13 or 15(d)

REVENUE RECOGNITION - Summary of Disaggregation of Revenue by Geographic Location (Details)

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REVENUE RECOGNITION - Summary of Disaggregation of Revenue by Geographic Location (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Disaggregation Of Revenue [Line Items]        
Total revenue $ 1,797,833 $ 5,371,646 $ 6,956,122 $ 16,117,583
North America and Caribbean        
Disaggregation Of Revenue [Line Items]        
Total revenue 971,147 3,891,875 4,262,408 11,644,353
Europe, Middle East and Africa        
Disaggregation Of Revenue [Line Items]        
Total revenue $ 826,686 $ 1,479,771 $ 2,693,714 $ 4,473,230