Annual report pursuant to Section 13 and 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 ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Disaggregation Of Revenue [Line Items]    
Total revenue $ 21,300,996 $ 18,560,668
North America and Caribbean    
Disaggregation Of Revenue [Line Items]    
Total revenue 15,387,519 14,275,967
Europe    
Disaggregation Of Revenue [Line Items]    
Total revenue $ 5,913,478 $ 4,284,701