CONDENSED CONSOLIDATED BALANCE SHEETS [Parenthetical] - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Allowance for doubtful accounts receivable (in dollars)	$ 101,947	$ 107,618
Preferred stock, par value (in dollars per share)	$ 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	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	110,000,000	110,000,000
Common stock, shares issued	84,062,446	83,031,595
Common stock, shares outstanding	83,081,595	83,031,595