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Note 6 - Stock-based Compensation | 3 Months Ended
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Mar. 31, 2025
Notes to Financial Statements |
Shareholders' Equity and Share-Based Payments [Text Block] |
6. | STOCK-BASED COMPENSATION
We recorded non-cash stock compensation expense in each period as follows:
|  | Three-month period ended |
|  | March 31, |  |  | March 31, |
|  | 2025 |  |  | 2024 |
Stock options |  | $ | 188 |  |  | $ | 156 |
Restricted stock grants |  |  | 39 |  |  |  | 5 |
Total |  | $ | 227 |  |  | $ | 161 |
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 March 31, 2025, there was $921 of total unrecognized compensation cost related to outstanding stock options, which is expected to be recognized over a weighted average period of 1.4 years. The following table summarizes stock option activity for the three-month period ended March 31, 2025:
|  | Number of Shares |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Term (years) |  |  | Aggregate Intrinsic Value |
Outstanding at January 1, 2025 |  |  | 1,106,436 |  |  | $ | 7.15 |  |  |  |  |  |  |  |  |
Granted |  |  | - |  |  |  | - |  |  |  |  |  |  |  |  |
Exercised |  |  | - |  |  |  | - |  |  |  |  |  |  |  |  |
Forfeited or expired |  |  | (13,015 | ) |  | $ | 7.11 |  |  |  |  |  |  |  |  |
Outstanding at March 31, 2025 |  |  | 1,093,421 |  |  | $ | 7.15 |  |  |  | 4.26 |  |  | $ | 25 |
Vested and expected to vest at March 31, 2025 |  |  | 994,263 |  |  | $ | 7.17 |  |  |  | 4.09 |  |  | $ | 23 |
Exercisable at March 31, 2025 |  |  | 628,327 |  |  | $ | 7.16 |  |  |  | 2.93 |  |  | $ | 16 |
Cash received from stock option exercises under our stock-based compensation plans for the three-month periods ended March 31, 2025 and March 31, 2024 was $0 and $685, respectively. Restricted stock awards vest in equal annual installments over three (3) years. Unrecognized compensation cost related to unvested restricted stock awards at March 31, 2025 and March 31, 2024, respectively, was $216 and $31.

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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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