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Note 12 - Derivative Financial Instruments - Fair Value of Swaps Recognized in Accrued Liabilities and in Other Comprehensive Income (Details) - USD ($) $ in Thousands | 9 Months Ended |
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Mar. 31, 2021 | Jun. 30, 2020
Interest Rate Swap Effective December 19, 2015 [Member] |  |
Notional Amount | $ 25,000 |
Fixed Rate | 1.88% |
Maturity | Apr. 24, 2022 |
Fair Value, Liability | $ (480) | $ (815)
Interest Rate Swap Effective May 24, 2017 Number One [Member] |  |
Notional Amount | $ 25,000 |
Fixed Rate | 2.83% |
Maturity | Aug. 06, 2023 |
Fair Value, Liability | $ (1,574) | (2,167)
Interest Rate Swap Effective May 24, 2017 Number Two [Member] |  |
Notional Amount | $ 100,000 |
Fixed Rate | 0.91% |
Maturity | Mar. 23, 2025 |
Fair Value, Liability | $ (770) | (2,485)
Interest Rate Swap Effective August 6, 2018 [Member] |  |
Notional Amount | $ 25,000 |
Fixed Rate | 0.88% |
Maturity | Apr. 24, 2025 |
Fair Value, Liability | $ (157) | (585)
Interest Rate Swap Effective March 23, 2020 [Member] |  |
Notional Amount | $ 25,000 |
Fixed Rate | 0.91% |
Maturity | Mar. 24, 2025 |
Fair Value, Liability | $ (187) | (615)
Interest Rate Swap Effective April 24, 2020 [Member] |  |
Fair Value, Liability | $ (3,168) | $ (6,667)

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- Definition Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226003-175313 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
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- Definition Date the derivative contract matures, in CCYY-MM-DD format. + References No definition available. + Details
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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details
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