CONSOLIDATED BALANCE SHEETS (PARENTHETICAL) - USD ($)	Jun. 30, 2017	Jun. 30, 2016
Allowance for doubtful accounts	$ 55,872	$ 55,175
Common stock, par value	$ 0.005	$ 0.005
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	7,382,706	7,382,706
Common stock, shares outstanding	7,382,706	7,382,706