ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Details) - USD ($)	Jun. 30, 2021	Dec. 31, 2020
ACCOUNTS PAYABLE AND ACCRUED LIABILITIES [Abstract]
Accounts payable - suppliers	$ 5,896,027	$ 5,727,781
Accrued commissions and royalties	586,341	807,708
Accrued payroll	223,111	277,908
Accrued vacation	525,137	417,238
Accrued bonuses	234,000	1,193,985
Accrued severance	0	511,681
Accrued expenses - other	626,752	1,106,489
TOTAL	$ 8,091,368	$ 10,042,790