Note 5 - Stock Incentive Plan - Schedule of Option Grants and Fair Value (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Stock options granted (in shares) | 508,902 | 604,064 |
| Fair value of shares vested | $ 980,455 | $ 970,451 |
| X | ||||||||||
- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Net number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|