CONDENSED BALANCE SHEETS (Parenthetical) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
CONDENSED BALANCE SHEETS
Accounts receivable, allowance for doubtful accounts	$ 52,756	$ 37,225
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized	31,500,000	31,500,000
Common stock, shares issued	10,933,989	10,596,566
Common stock, shares outstanding	10,933,989	10,596,566