STOCKHOLDERS' EQUITY - Stock option expense (Details) - USD ($)	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Share-Based Payment Arrangement, Expensed and Capitalized, Amount
Stock option expense	$ 4,905,482	$ 6,371,760
Cost of revenues
Share-Based Payment Arrangement, Expensed and Capitalized, Amount
Stock option expense	424,736	648,358
General and administrative
Share-Based Payment Arrangement, Expensed and Capitalized, Amount
Stock option expense	2,346,203	2,232,419
Sales and marketing
Share-Based Payment Arrangement, Expensed and Capitalized, Amount
Stock option expense	2,034,305	2,926,792
Research and development
Share-Based Payment Arrangement, Expensed and Capitalized, Amount
Stock option expense	$ 100,238	$ 564,191