Note 7 - Securities Available-For-Sale (Details) - Available-For-Sale Securities with Continuous Unrealized Losses (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Sep. 30, 2014	Jun. 30, 2014
Note 7 - Securities Available-For-Sale (Details) - Available-For-Sale Securities with Continuous Unrealized Losses [Line Items]
Less than 12 Months - Unrealized Loss	$ (48)
Less than 12 Months - Estimated Fair Value	26,817
12 Months or More - Unrealized Loss	0	(45)
12 Months or More - Estimated Fair Value	0	1,261
Unrealized Loss	(48)	(45)
Estimated Fair Value	26,817	1,261
US Treasury Securities [Member]
Note 7 - Securities Available-For-Sale (Details) - Available-For-Sale Securities with Continuous Unrealized Losses [Line Items]
Less than 12 Months - Unrealized Loss	(48)
Less than 12 Months - Estimated Fair Value	26,817
Unrealized Loss	(48)
Estimated Fair Value	26,817
Mutual Fund Investments [Member]
Note 7 - Securities Available-For-Sale (Details) - Available-For-Sale Securities with Continuous Unrealized Losses [Line Items]
12 Months or More - Unrealized Loss		(45)
12 Months or More - Estimated Fair Value		1,261
Unrealized Loss		(45)
Estimated Fair Value		$ 1,261