FAIR VALUE MEASUREMENTS (Schedule of Fair Value on Recurring Basis) (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, at Carrying Value, Total	$ 40,087,372	$ 20,538,057	$ 4,672,034
Fair Value, Measurements, Recurring [Member] | Reported Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets	18,280,779	8,051,662
Fair Value, Measurements, Recurring [Member] | Money Market Funds [Member] | Reported Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	18,280,779	8,051,662
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets	18,280,779	8,051,662
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	$ 18,280,779	$ 8,051,662