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Note 14 - Treasury Stock (Details Textual) - USD ($) $ in Millions | Jul. 26, 2022 | Jul. 31, 2023 | Dec. 07, 2022 | Oct. 04, 2021
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Stock Repurchase Program, Authorized Amount |  |  | $ 1.0 | $ 3.0
Stock Repurchase Program, Authorized Repurchase Amount Used |  | $ 0.3 |  |
Treasury Stock, Shares, Retired (in shares) | 239,168 |  |  |

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- Definition Amount used of the stock repurchase plan authorized. + References No definition available. + Details
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- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
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- Definition Number of shares of common and preferred stock retired from treasury during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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