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Note 5 - Stock-based Compensation | 6 Months Ended
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Jun. 30, 2026
Notes to Financial Statements |
Shareholders' Equity and Share-Based Payments [Text Block] |
5. | STOCK-BASED COMPENSATION
We recorded non-cash stock compensation expense in each period as follows:
|  | Three-month period ended |  |  | Six-month period ended |
|  | June 30, |  |  | June 30, |  |  | June 30, |  |  | June 30, |
|  | 2026 |  |  | 2025 |  |  | 2026 |  |  | 2025 |
Stock options |  | $ | 77 |  |  | $ | 190 |  |  | $ | 155 |  |  | $ | 378 |
Restricted stock |  |  | 13 |  |  |  | 45 |  |  |  | (66 | ) |  |  | 84 |
Total |  | $ | 90 |  |  | $ | 235 |  |  | $ | 89 |  |  | $ | 462 |
We have stock options outstanding from various stock-based employee compensation plans for which we record compensation cost relating to share-based payment transactions in our financial statements. As of June 30, 2026, there was $232 of total unrecognized compensation cost related to outstanding stock options, which is expected to be recognized over a weighted average period of 0.8 years. The following table summarizes stock option activity for the six-month period ended June 30, 2026:
|  | Number of Shares |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Term (years) |  |  | Aggregate Intrinsic Value |
Outstanding at January 1, 2026 |  |  | 967,351 |  |  | $ | 6.95 |  |  |  |  |  |  |  |  |
Granted |  |  | 5,000 |  |  | $ | 5.92 |  |  |  |  |  |  |  |  |
Exercised |  |  | (6,766 | ) |  | $ | 5.27 |  |  |  |  |  |  |  |  |
Forfeited or expired |  |  | (20,140 | ) |  | $ | 7.19 |  |  |  |  |  |  |  |  |
Outstanding at June 30, 2026 |  |  | 945,445 |  |  | $ | 6.96 |  |  |  | 3.30 |  |  | $ | 199 |
Vested and expected to vest at June 30, 2026 |  |  | 892,666 |  |  | $ | 6.92 |  |  |  | 3.19 |  |  | $ | 198 |
Exercisable at June 30, 2026 |  |  | 726,427 |  |  | $ | 6.78 |  |  |  | 2.73 |  |  | $ | 197 |
Cash received from stock option exercises under our stock-based compensation plans for the three-month periods ended June 30, 2026, and June 30, 2025, was $36 and $61, respectively. Cash received from stock option exercises under our stock-based compensation plans for the six-month periods ended June 30, 2026, and June 30, 2025, was $36 and $61, respectively. Restricted stock awards vest in equal annual installments over three (3) years. Unrecognized compensation cost related to unvested restricted shares at June 30, 2026, and 2025, respectively, was $59 and $171.

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- Definition The entire disclosure for shareholders' equity and share-based payment arrangement. Includes, but is not limited to, disclosure of policy and terms of share-based payment arrangement, deferred compensation arrangement, and employee stock purchase plan (ESPP). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/718/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/505/tableOfContent + Details
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