Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Accounts receivable, allowance for doubtful accounts | $ 1,207 | $ 1,336 |
| Preferred stock, no par value (in dollars per share) | $ 0 | $ 0 |
| Preferred stock, shares authorized (in shares) | 1,000,000 | 1,000,000 |
| Preferred stock, shares issued (in shares) | 0 | 0 |
| Common Class A [Member] | ||
| Common stock, par value (in dollars per share) | $ 0.1 | $ 0.1 |
| Common stock, shares authorized (in shares) | 10,000,000 | 10,000,000 |
| Common stock, shares outstanding (in shares) | 2,115,263 | 2,115,263 |
| Common stock, treasury shares (in shares) | 1,072,769 | 1,072,769 |
| Common Class B [Member] | ||
| Common stock, par value (in dollars per share) | $ 0.1 | $ 0.1 |
| Common stock, shares authorized (in shares) | 30,000,000 | 30,000,000 |
| Common stock, shares outstanding (in shares) | 10,548,629 | 10,425,175 |
| Common Class B [Member] | Restricted Stock [Member] | ||
| Common stock, treasury shares (in shares) | 3,218,307 | 3,218,307 |
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- Definition Amount of allowance for credit loss on accounts receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Face amount or stated value per share of common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Face amount per share of no-par value preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares issued for nonredeemable preferred shares and preferred shares redeemable solely at option of issuer. Includes, but is not limited to, preferred shares issued, repurchased, and held as treasury shares. Excludes preferred shares classified as debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of previously issued common shares repurchased by the issuing entity and held in treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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