Represents the increase in number of shares available for grant during the period.

No definition available.

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Aggregate number of common shares reserved and available for future issuance.

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Weighted-average period over which cost not yet recognized is expected to be recognized for 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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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

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

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

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

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Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

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No definition available.

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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP).

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Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

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Stock-Based Compensation - Additional Information (Details) - USD ($)			12 Months Ended
	May 20, 2021	Oct. 07, 2016	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation
Total grant date fair value of options vested			$ 1,300,000	$ 900,000
Weighted-average grant date fair value of options granted			$ 5.40	$ 3.60
Shares available for future issuance (in shares)			689,472	1,038,956
Number of shares reserved and available for future issuance			3,261,836
Value of share issued			$ 889,000	$ 2,256,000
Number of stock options granted (in shares)			489,244
Options remained outstanding			1,994,726	1,783,298
Stock options
Share-based Compensation
Unrecognized stock-based compensation expense			$ 3,800,000
Unrecognized compensation expense, weighted-average period expected to be recognized			2 years 4 months 24 days
2016 Employee Incentive Plan
Share-based Compensation
Maximum number of common stock shares may be issued under the plan		500,000
Annual increases in the number of shares available for issuance, percentage of outstanding capital stock		3.00%
Increase in number of shares reserved for issuance (in shares)	550,000
Shares available for future issuance (in shares)			689,472
2008 Equity Incentive Plan
Share-based Compensation
Number of stock options granted (in shares)			0
Options remained outstanding			51,695
ESPP
Share-based Compensation
Shares available for future issuance (in shares)			774,137
Number of shares issued (in shares)			77,221	64,407
Value of share issued			$ 342,000	$ 236,000