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Note H - Stockholders' Equity (Details Textual) - USD ($) | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Mar. 28, 2017 | May 11, 2015 | Feb. 06, 2015 | Jun. 02, 2011
Stock Repurchase Program, Authorized Amount |  |  | $ 7,000,000 | $ 5,000,000 | $ 3,000,000 | $ 2,000,000
Treasury Stock, Value, Acquired, Cost Method | $ 1,367,000 | $ 510,000 |  |  |  |
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation | 47,065 | 43,610 |  |  |  |
Shares Paid for Tax Withholding for Share-based Compensation, Average Cost Per Share | $ 11.26 | $ 11.68 |  |  |  |
Payment, Tax Withholding, Share-based Payment Arrangement | $ 530,000 | $ 510,000 |  |  |  |
Excluding Restricted Stock Purchased [Member] |  |  |  |  |  |
Treasury Stock, Shares, Acquired | 76,272 | 0 |  |  |  |
Treasury Stock Acquired, Average Cost Per Share | $ 10.97 |  |  |  |  |
Treasury Stock, Value, Acquired, Cost Method | $ 837,000 |  |  |  |  |
2015 Increase [Member] |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  | $ 2,000,000 | $ 1,000,000 |
2017 Increase [Member] |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  | $ 2,000,000 |  |  |

X
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- Definition Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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- Definition Number of shares that have been repurchased during the period and are being held in treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 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 + Details
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