Note 4 - Fair Value Measurement: (Detail) - Assets measured at fair value on a recurring basis: (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Jun. 30, 2012
Fair Value	$ 51,127	$ 63,597
Corporate Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value	48,635	61,174
Corporate Debt Securities [Member]
Fair Value	48,635	61,174
US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value	442	443
US States and Political Subdivisions Debt Securities [Member]
Fair Value	442	443
Mutual Fund Investments [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value	1,400	1,423
Mutual Fund Investments [Member]
Fair Value	1,400	1,423
Equity Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value	650	557
Equity Securities [Member]
Fair Value	650	557
Fair Value, Inputs, Level 1 [Member]
Fair Value	2,050	1,980
Fair Value, Inputs, Level 2 [Member]
Fair Value	$ 49,077	$ 61,617

- Definition

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 Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

+ References+ Details