Quarterly report pursuant to Section 13 or 15(d)

4. ACCRUED EXPENSES (Details)

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4. ACCRUED EXPENSES (Details) - USD ($)
Jun. 30, 2018
Dec. 31, 2017
Payables and Accruals [Abstract]    
Accrued payroll expenses $ 402,278 $ 1,037,122
Other accrued liabilities 1,106,870 894,798
Total accrued expenses $ 1,509,148 $ 1,931,920