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Consolidated Balance Sheets (Parenthetical) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Statement of Financial Position [Abstract]    
Accounts receivable, net of allowance $ 16,127,000 $ 15,650,217
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 60,000,000 60,000,000
Common stock, shares issued 33,810,416 31,017,083
Common stock, shares outstanding 33,810,416 31,017,083