CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2013	Jun. 30, 2013
Common Class A
Common stock, par value	$ 0.025	$ 0.025
Common stock, shares authorized	28,000,000	28,000,000
Common stock, shares issued	13,865,757	13,865,021
Treasury stock	471,371	463,958
Common Class B
Common stock, par value	$ 0.025	$ 0.025
Common stock, shares authorized	4,500,000	4,500,000
Common stock, shares issued	0	0
Common Class C
Common stock, par value	$ 0.025	$ 0.025
Common stock, shares authorized	3,500,000	3,500,000
Common stock, shares issued	2,069,791	2,070,527