Note 6 - Conversion of Shares of Class B Common Stock (Detail)	3 Months Ended	9 Months Ended
	Mar. 31, 2013	Mar. 31, 2013	Jul. 01, 2012
Common Class B [Member]
Conversion of Stock, Shares Converted	53,945
Common Stock, Shares, Issued	1,414,517	1,414,517	1,468,462
Common Stock, Voting Rights		10
Common Class A [Member]
Conversion of Stock, Shares Converted	53,945
Common Stock, Shares, Issued	3,736,954	3,736,954	3,683,009