Consolidated Balance Sheets (Parenthetical) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Allowance for doubtful accounts receivable	$ 106,733	$ 107,618
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	2,045,714	2,045,714
Preferred stock, shares outstanding	2,045,714	2,045,714
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	110,000,000	110,000,000
Common stock, shares issued	84,112,446	83,031,595
Common stock, shares outstanding	84,112,446	83,031,595