BALANCE SHEET [Parenthetical] - USD ($)	Jun. 30, 2016	Jun. 30, 2015
Allowances for accounts receivable (in dollars)	$ 170,000	$ 170,000
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,500,000	1,500,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	10,427,878	10,427,878
Common stock, shares outstanding	8,027,147	8,027,147
Treasury stock, at cost	2,400,731	2,400,731
Series A Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	200,000	200,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0