Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical)

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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($)
Jun. 30, 2019
Dec. 31, 2018
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ 227,500 $ 227,500
Preferred stock, par value (in dollars per shares) $ 0.001 $ 0.001
Preferred stock, authorized 5,000,000 5,000,000
Preferred stock, issued 0 0
Common stock, par value (in dollars per shares) $ 0.001 $ 0.001
Common stock, authorized 70,000,000 70,000,000
Common stock, issued [1] 61,903,575 61,703,575
Common stock, outstanding [1] 61,903,575 61,703,575
Common stock, issuable 1,000,000 3,200,000
[1] Includes 100,000 and 3,200,000 shares issuable at June 30, 2019 and December 31, 2018, respectively, per terms of note agreements.