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Note 8 - Supplemental Equity and Accumulated Other Comprehensive Income (Loss) (Details Textual) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2020 | Jun. 30, 2019 | Jul. 01, 2018 | Jun. 30, 2018
Common Stock, Dividends, Per Share, Declared | $ 0.32 |  | $ 0.32 |  |  |  |  |
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | $ 0 |  | $ 0 |  |  |  |  |
Stockholders' Equity Attributable to Parent, Ending Balance | 1,174,224 |  | 1,109,469 |  | $ 1,165,589 |  | $ 1,079,061 |
Cumulative Effect of New Accounting Principle in Period of Adoption |  |  |  |  | (879) |  | 594 |
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member] |  |  |  |  |  |  |  |
Stockholders' Equity Attributable to Parent, Ending Balance | (10,041) | [1] | 0 |  | (9,537) |  | 0 | [2]
AOCI Attributable to Parent [Member] |  |  |  |  |  |  |  |
Stockholders' Equity Attributable to Parent, Ending Balance | $ (91,627) |  | $ (70,632) |  | $ (83,521) |  | (44,814) |
Cumulative Effect of New Accounting Principle in Period of Adoption |  |  |  |  |  |  | $ (24,682) |
AOCI Attributable to Parent [Member] | Accounting Standards Update 2016-01 [Member] |  |  |  |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption |  |  |  |  |  | $ (24,682) |  |
AOCI Attributable to Parent [Member] | Accounting Standards Update 2018-02 [Member] |  |  |  |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption |  |  |  |  |  | $ (24,682) |  |
Forecast [Member] |  |  |  |  |  |  |  |
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent |  |  |  | $ 3,907 |  |  |  |
[1] | The gain (loss) on the forward starting interest rate swap will be reclassified into earnings beginning October 31, 2019. Approximately ($3,907) of the ($10,041) will be reclassified into earnings in the 12 months subsequent to September 30, 2019.
[2] | As previously disclosed in our 10-K/A, unrealized gains of $24,682 on available-for-sale investments with readily determinable fair vales were included in the June 30, 2018 Consolidated Balance Sheet and were reclassified into retained earnings at the beginning of fiscal 2019 upon our adoption of ASU 2016-01 and ASU 2018-02. The amounts presented in accumulated other comprehensive income as of June 30, 2018 exclude these unrealized gains subsequently reclassified into retained earnings.

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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 4.E) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(31)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(30)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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