Amount of intrinsic value of equity-based compensation awards not vested.

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Share based compensation arrangement by share based payment award percentage from fair market price.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Number of common shares reserved for future issuance related to deferred compensation arrangements with individuals.

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Amount of cost to be recognized for option under share-based payment arrangement.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Net number of share options (or share units) granted during the period.

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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Percentage of vesting of award under share-based payment arrangement.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Number of options vested.

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Share-based compensation (Details) - USD ($)	1 Months Ended	12 Months Ended
Share-based compensation (Details) - USD ($)	Jan. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jun. 11, 2020	Jun. 07, 2018	Sep. 17, 2014
Share-based compensation
Share based compensation expense		$ 2,300,000	$ 900,000	$ 500,000
Common stock reserved for issuance		4,341,463
Stock option vesting period		1 year	1 year	6 months
Unrecognized share based compensation expense related to non-vested options		$ 900,000
Option to purchase granted			381,181
Intrinsic value of options outstanding		26,900,000	$ 20,600,000
Intrinsic value of options unvested		800,000	1,100,000
Intrinsic value of options exercised		$ 2,565,056	$ 4,051,422	$ 7,088,578
Share-based compensation arrangement by share based payment award percentage of fair market Person holding more then 10% voting stock		110.00%
Stock Option Plan
Share-based compensation
Stock option vesting period		2 years
Stock option vesting, percentage		50.00%	50.00%
Option to purchase granted		584,826		463,754
Options vested		337,727	40,588	20,500
Minimum
Share-based compensation
Expected lives		1 year 6 months	1 year 6 months	2 years 6 months
Minimum \| Stock Option Plan
Share-based compensation
Expected lives		3 years
Maximum
Share-based compensation
Expected lives		2 years 9 months	5 years	5 years
Maximum \| Stock Option Plan
Share-based compensation
Expected lives		10 years
2014 Stock Incentive Plan
Share-based compensation
Common stock reserved for issuance							3,000,000
2018 Stock Incentive Plan
Share-based compensation
Common stock reserved for issuance						4,000,000
2020 Stock Incentive Plan
Share-based compensation
Common stock reserved for issuance					3,000,000
Stock Option Plan
Share-based compensation
Options granted		602,526	381,181	484,254
Stock Appreciation Rights (SARs)
Share-based compensation
Stock option vesting period	6 months
Option to purchase granted	17,700