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Note 2 - Marketable Securities (Detail) - The following table summarizes marketable securities by security type: (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Amortized Cost	$ 6,369	$ 6,981
US Treasury Obligations of US Government Agencies [Member]
Amortized Cost	3,277	8,684
Unrealized Gain	1	21
Unrealized Loss	(1)
Fair Value	3,277	8,705
US Government-sponsored Enterprises Debt Securities [Member]
Amortized Cost	2,525	2,826
Unrealized Gain		8
Unrealized Loss	(2)	(1)
Fair Value	2,523	2,833
Municipal Securities [Member]
Amortized Cost	3,471
Unrealized Gain	6
Fair Value	3,477
Asset-backed Securities [Member]
Amortized Cost	1,629	2,964
Unrealized Gain	1	6
Fair Value	1,630	2,970
Corporate Bond Securities [Member]
Amortized Cost	2,593	3,181
Unrealized Gain	5	5
Unrealized Loss	(1)
Fair Value	2,597	3,186
Total [Member]
Amortized Cost	13,495	17,655
Unrealized Gain	13	40
Unrealized Loss	(4)	(1)
Fair Value	$ 13,504	$ 17,694

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investment securities as of the balance sheet date which may include marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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