Condensed Balance Sheets (Unaudited) (Parenthetical) - USD ($)	Mar. 31, 2018	Jun. 30, 2017
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 45,000	$ 45,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	13,000,000	13,000,000
Common stock, shares issued	8,288,659	8,230,167
Common stock, shares outstanding	8,288,659	8,230,167