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Note 12 - Fair Value Measurements (Tables) | 3 Months Ended
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Sep. 30, 2012
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] |
September 30, 2012 |  |  |  |  |  |  |  |  |  |  |  |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Balance |
Cash equivalents |  | $ | 89,335 |  |  | $ | - |  |  | $ | - |  |  | $ | 89,335 |
Available-for-sale securities |  |  | - |  |  |  | 10,670 |  |  |  | - |  |  |  | 10,670 |
Total |  | $ | 89,335 |  |  | $ | 10,670 |  |  | $ | - |  |  | $ | 100,005 |
June 30, 2012 |  |  |  |  |  |  |  |  |  |  |  |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Balance |
Cash equivalents |  | $ | 95,137 |  |  | $ | - |  |  | $ | - |  |  | $ | 95,137 |
Available-for-sale securities |  |  | - |  |  |  | 9,005 |  |  |  | - |  |  |  | 9,005 |
Total |  | $ | 95,137 |  |  | $ | 9,005 |  |  | $ | - |  |  | $ | 104,142 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
September 30, 2012 |
|  | Cost |  |  | Estimated Fair Value |
Due in one year or less |  | $ | 8,576 |  |  | $ | 8,474 |
Due after one year through five years |  | $ | 2,197 |  |  | $ | 2,196 |
June 30, 2012 |
|  | Cost |  |  | Estimated Fair Value |
Due in one year or less |  | $ | 6,999 |  |  | $ | 6,862 |
Due after one year through five years |  | $ | 2,130 |  |  | $ | 2,143 |

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- Definition Tabular disclosure related to assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a recurring and/or nonrecurring basis in periods after initial recognition. Disclosures include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3) as well as transfers between levels 1 and 2. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 6 -Footnote 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a,b,bb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2C -URI http://asc.fasb.org/extlink&oid=7578670&loc=SL7498348-110258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19279-110258 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19190-110258 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 33 -Subparagraph a, b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
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