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Note 12 - Fair Value Measurements (Details) (USD $) | Sep. 30, 2013 | Jun. 30, 2013
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Note 12 - Fair Value Measurements (Details) [Line Items] |  |
Restricted Cash and Investments, Noncurrent | $ 14,900,000 | $ 15,400,000
Available-for-sale Securities | 13,431,000 | 15,529,000
Municipal Bonds [Member] |  |
Note 12 - Fair Value Measurements (Details) [Line Items] |  |
Available-for-sale Securities | 12,200,000 | 14,000,000
Corporate Bond Securities [Member] |  |
Note 12 - Fair Value Measurements (Details) [Line Items] |  |
Available-for-sale Securities | $ 1,200,000 | $ 1,500,000

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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 + Details
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- Definition The noncurrent cash, cash equivalents and investments that is restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits classified as long-term; that is not expected to be released from such existing restrictions within one year of the balance sheet date or operating cycle, whichever is longer. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. Includes noncurrent cash equivalents and investments that are similarly restricted as to withdrawal, usage or disposal. + References No definition available. + Details
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