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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Number of options outstanding, including both vested and non-vested options.

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Purchase price of common stock expressed as a percentage of its fair value.

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Share-Based Compensation - Additional Information (Details) - USD ($)		3 Months Ended
	Mar. 12, 2019	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Jun. 04, 2024
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options outstanding		375,596		376,551
Share based compensation expense		$ 2,822,000	$ 2,906,000
Unrecognized compensation cost		$ 9,700,000
Weighted-average period for recognition of compensation cost		1 year 4 months 24 days
Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSU outstanding		642,263		975,520
ESPP \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation expense		$ 100,000	$ 100,000
2015 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options outstanding		29,935
Remaining shares available to be granted		0
2019 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options outstanding		179,468
Number of shares available for issuance	158,333	862,285
Number of shares available to be issued		440,440
Allowed annual percentage increase in shares authorized as percentage of outstanding shares of common stock	4.00%
2019 Plan \| Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSU outstanding		637,457
Amended Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of additional shares available for issuance					630,000
2019 ESPP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Remaining shares available to be granted		98,501
Purchase of common stock through payroll deductions expressed in percentage of fair market value	85.00%
Total number of shares issued under 2019 ESPP		88,165
Inducement Award Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options outstanding		166,193
Number of shares available for issuance		321,111
Inducement Award Plan \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum shares allowed to be issued under ESPP		500,000
Inducement Award Plan \| Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSU outstanding		4,806