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Note 12 - Fair Value Measurements | 3 Months Ended
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Sep. 30, 2013
Fair Value Disclosures [Abstract] |
Fair Value Disclosures [Text Block] | (12) Fair Value Measurements We determine fair value as the price that would be received upon sale of an asset or paid upon transfer of a liability in an orderly transaction between market participants at the measurement date and in the principal or most advantageous market for that asset or liability. The fair value is calculated based on assumptions that market participants use in pricing the asset or liability, and not on assumptions specific to the Company. In addition, the fair value of liabilities includes consideration of non-performance risk including our own credit risk. Each fair value measurement is reported in one of three levels, determined by the lowest level input that is significant to the fair value measurement in its entirety. These levels are: Level 1 Inputs are based upon unadjusted quoted prices for identical instruments traded in active markets. Level 2 Inputs are based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 Inputs are generally unobservable and typically reflect management’s estimates of assumptions that market participants would use in pricing the asset or liability. The fair values are therefore determined using model-based techniques that include option pricing models, discounted cash flow models, and similar techniques. The following section describes the valuation methodologies we use to measure different financial assets and liabilities at fair value. Assets and Liabilities Measured at Fair Value on a Recurring Basis The following table presents our assets and liabilities measured at fair value on a recurring basis at September 30, 2013 and June 30, 2013 (in thousands):
September 30, 2013
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Balance |
Cash equivalents |  | $ | 106,158 |  |  | $ | - |  |  | $ | - |  |  | $ | 106,158 |
Available-for-sale securities |  |  | - |  |  |  | 13,431 |  |  |  | - |  |  |  | 13,431 |
Total |  | $ | 106,158 |  |  | $ | 13,431 |  |  | $ | - |  |  | $ | 119,589 |
June 30, 2013
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Balance |
Cash equivalents |  | $ | 88,034 |  |  | $ | - |  |  | $ | - |  |  | $ | 88,034 |
Available-for-sale securities |  |  | - |  |  |  | 15,529 |  |  |  | - |  |  |  | 15,529 |
Total |  | $ | 88,034 |  |  | $ | 15,529 |  |  | $ | - |  |  | $ | 103,563 |
Cash equivalents consist of money market accounts and mutual funds in U.S. government and agency fixed income securities. We use quoted prices in active markets for identical assets or liabilities to determine fair value. There were no transfers between level 1 and level 2 during the first three months of fiscal 2014 or fiscal 2013. At September 30, 2013 and June 30, 2013, $14.9 million and $15.4 million respectively, of the cash equivalents were restricted, and classified as long-term assets. At September 30, 2013, available-for-sale securities consist of $12.2 million in U.S. municipal bonds and $1.2 million of corporate bonds, and at June 30, 2013, available-for-sale securities consisted of $14.0 million in U.S. municipal bonds and $1.5 million of corporate bonds, all with maturities of less than two years. The bonds are rated A/A2 or better by S&P/Moodys respectively. As of September 30, 2013 and June 30, 2013, there were no material gross unrealized gains or losses on available-for-sale securities. As of September 30, 2013 and June 30, 2013, the contractual maturities of our available-for-sale securities were as follows:
September 30, 2013
|  | Cost |  |  | Estimated Fair Value |
Due in one year or less |  | $ | 9,969 |  |  | $ | 9,837 |
Due after one year through five years |  | $ | 3,570 |  |  | $ | 3,594 |
June 30, 2013
|  | Cost |  |  | Estimated Fair Value |
Due in one year or less |  | $ | 13,213 |  |  | $ | 13,067 |
Due after one year through five years |  | $ | 2,463 |  |  | $ | 2,462 |
No investments have been in a continuous loss position for more than one year, and no other-than-temporary impairments were recognized. See also Note 4, "Restricted Cash and Investments" and Note 5, "Marketable Securities". Assets and Liabilities Measured at Fair Value on a Non-recurring Basis We measure certain assets at fair value on a non-recurring basis. These assets are recognized at fair value when they are deemed to be impaired. During the three month periods ended September 30, 2013 and 2012, we did not record any impairments on those assets required to be measured at fair value on a non-recurring basis.

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13537-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13433-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13504-108611 + Details
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