XML 35 R24.htm IDEA: XBRL DOCUMENT
v3.25.1

Note 6 - Stockholders' Equity (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2025
Notes Tables |
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] |
​ |  | Restricted Stock |
|  | March 31, |  |  | March 31, |
|  | 2025 |  |  | 2024 |
Equity awards outstanding, beginning of year |  |  | 11,843,586 |  |  |  | 9,639,068 |
Changes during the year: |  |  |  |  |  |  |  |
Granted |  |  | 2,547,179 |  |  |  | 3,304,468 |
Exercised or vested |  |  | (1,431,666 | ) |  |  | (1,379,543 | )
Expired or Forfeited |  |  | (20,052 | ) |  |  | (165,514 | )
Equity awards outstanding, end of period |  |  | 12,939,047 |  |  |  | 11,398,479 |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
​ |  | Stock Options |
|  | March 31, |  |  | March 31, |
|  | 2025 |  |  | 2024 |
Stock options vested and unvested outstanding, beginning of year |  |  | 4,470,216 |  |  |  | 4,697,029 |
Changes during the year: |  |  |  |  |  |  | — |
Granted |  |  | — |  |  |  | — |
Exercised |  |  | (5,000 | ) |  |  | (2,500 | )
Expired or Forfeited |  |  | — |  |  |  | — |
Stock options vested and unvested outstanding, end of period |  |  | 4,465,216 |  |  |  | 4,694,529 |

X
- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration