Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ / shares in Thousands |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Allowance for doubtful accounts | $ 380,000 | $ 265,000 |
| Asser retirement obligations, non-related party | $ 250,000 | $ 250,000 |
| Common stock, no par value (in dollars per share) | $ 0 | $ 0 |
| Common stock, shares authorized (in shares) | 10,000,000 | 10,000,000 |
| Common stock, shares issued (in shares) | 6,480,000 | 6,420,000 |
| Common stock, shares outstanding (in shares) | 6,480,000 | 6,420,000 |
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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 Current portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Face amount per share of no-par value 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 Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. 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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