Note 9 - Cash Dividends	9 Months Ended
Mar. 31, 2021
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	NOTE 9 - CASH DIVIDENDS The Company paid cash dividends of $4.0 million in both the nine months ended March 31, 2021 and March 31, 2020. Dividends on restricted stock units in the amount of $109,685 and $59,077 were accrued as of March 31, 2021 and 2020, respectively. These dividends will be paid upon the vesting of the restricted stock units when shares are issued to the award recipients. In April 2021, the Board of Directors declared a regular quarterly cash dividend of $0.05 per share payable May 11, 2021 to shareholders of record as of May 3, 2021. The indicated annual cash dividend rate is $0.20 per share.

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
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-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-URI http://asc.fasb.org/topic&trid=2208762

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