XML 66 R47.htm IDEA: XBRL DOCUMENT
v3.25.1

Stock-based compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
Stock-based compensation |
Schedule of significant weighted average assumptions | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2024 |  | 2023 |  | 2022
Risk free interest rate |  | 5.23 | % | 5.06 | % | 1.64
Expected option life (years) |  | 0.8 |  | 1.0 | ​ | 1.2
Expected volatility |  | 32.93 | % | 42.42 | % | 47.15
Expected dividend yield |  | 1.48 | % | 1.60 | % | 2.35
Schedule of company's stock option activity | A summary of the Company’s stock option activity for the year ended December 31, 2024 is as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted | ​ | Average | ​ | ​ | ​
​ | ​ | ​ | ​ | Average | ​ | Remaining | ​ | Aggregate
​ | ​ | ​ | ​ | Exercise | ​ | Contractual | ​ | Intrinsic
​ |  | Options |  | Price |  | Life (Years) |  | Value (1)
Outstanding at beginning of period |  | 12,175 | ​ | $ | 16.08 |  |  |  | ​ |
Granted |  | 7,204 | ​ |  | 23.24 |  |  |  | ​ |
Exercised |  | (1,043) | ​ |  | 22.77 |  |  |  | ​ |
Forfeited/expired |  | (4,861) | ​ |  | 22.77 |  |  |  | ​ |
Outstanding as of December 31, 2024 |  | 13,475 | ​ | $ | 16.97 |  | 1.51 | years | $ | 120,136
Exercisable as of December 31, 2024 |  | — | ​ | $ | — |  | — | years | $ | —
(1) | The intrinsic value of a stock option represents the amount by which the fair value of the underlying stock, measured by reference to the closing price of the common shares of $25.89 on the Nasdaq Global Select Market on December 31, 2024, exceeds the exercise price of the option.
Schedule of weighted average fair value of options at the date of grant and the intrinsic value | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2024 |  | 2023 |  | 2022
Options granted with an exercise price below market price on the date of grant: |  | ​ |  |  | ​ |  | ​ | ​ |
Employees — preferred stock | ​ | $ | 2.58 | ​ | $ | 12.21 | ​ | $ | 5.58
Overall weighted average | ​ |  | 2.58 | ​ |  | 12.21 | ​ |  | 5.58
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Options granted with an exercise price at market price on the date of grant: | ​ |  |  | ​ |  |  | ​ |  |
Management employees | ​ | $ | — | ​ | $ | — | ​ | $ | —
Employees — common stock | ​ |  | 8.50 | ​ |  | 8.29 | ​ |  | 4.32
Overall weighted average | ​ |  | 8.50 | ​ |  | 8.29 | ​ |  | 4.32
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Options granted with an exercise price above market price on the date of grant: | ​ |  |  | ​ |  |  | ​ |  |
Management employees | ​ | $ | — | ​ | $ | — | ​ | $ | —
Employees — preferred stock | ​ |  | — | ​ |  | — | ​ |  | —
Overall weighted average | ​ |  | — | ​ |  | — | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total intrinsic value of options exercised | ​ | $ | 2,482 | ​ | $ | 104,559 | ​ | $ | 17,158

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

X
- Definition Tabular disclosure of share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock
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
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration