Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2015	Jun. 30, 2014
Common Class A [Member]
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, Authorized (in shares)	20,000,000	20,000,000
Common stock, Outstanding (in shares)	6,223,558	6,165,838
Common Class B [Member]
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, Authorized (in shares)	10,000,000	10,000,000
Common stock, Outstanding (in shares)	789,069	794,990
Allowance for doubtful accounts	$ 612	$ 704