ACCOUNTS PAYABLE AND ACCRUED LIABILITIES - Schedule of Accounts Payable and Accrued Liability (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Accounts Payable and Accrued Liabilities [Abstract]
Trade payables	$ 9,023,190	$ 7,440,965
Payroll liabilities	1,548,038	1,367,340
Contract liabilities	1,076,063	559,232
Other liabilities	784,029	829,816
Accounts payable and accrued liabilities	$ 12,431,320	$ 10,197,353