Note 3 - Securities Available For Sale: (Detail) - Available-For-Sale Securities With Unrealized Losses: (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Jun. 30, 2011
Less than 12 months unrealized loss	$ (309)	$ (98)
Less than 12 months estimated fair value	20,451	1,208
12 months or more unrealized loss	0	0
12 months or more estimated fair value	0	0
Unrealized loss	(309)	(98)
Estimated fair value	20,451	1,208
Corporate Bond Securities [Member]
Less than 12 months unrealized loss	(309)
Less than 12 months estimated fair value	20,451
12 months or more unrealized loss	0
12 months or more estimated fair value	0
Unrealized loss	(309)
Estimated fair value	20,451
Mutual Fund Investments [Member]
Less than 12 months unrealized loss		(98)
Less than 12 months estimated fair value		1,208
12 months or more unrealized loss		0
12 months or more estimated fair value		0
Unrealized loss		(98)
Estimated fair value		$ 1,208