Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Jun. 30, 2012
Allowance for doubtful accounts (in Dollars) (in Dollars)	$ 729	$ 965
Common Class A [Member]
Par Value (in Dollars per share)	$ 1	$ 1
Shares Authorized	20,000,000	20,000,000
Shares Outstanding	6,064,353	6,017,227
Common Class B [Member]
Par Value (in Dollars per share)	$ 1	$ 1
Shares Authorized	10,000,000	10,000,000
Shares Outstanding	741,982	753,307