Common stock exchange ratio.

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- Definition

Reversal of stock based compensation expense.

+ References

No definition available.

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- Definition

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

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-Name Accounting Standards Codification
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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

+ References

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- Definition

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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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

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.

+ References

No definition available.

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- Definition

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

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- Definition

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

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No definition available.

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- Definition

Per share weighted-average price paid for shares purchased on open market for issuance under share-based payment arrangement.

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

No definition available.

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- Definition

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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Stock-Based Compensation - Additional Information (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($) $ / shares shares	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) $ / shares shares	Sep. 30, 2020 USD ($)	Jan. 20, 2021	Aug. 31, 2018 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock exchange ratio					0.90686
Weighted average per share fair value of option \| $ / shares	$ 5.34		$ 5.34
Number of stock option grants	13,454
Weighted Average Exercise Price, Granted \| $ / shares	$ 13.09
Stock-based compensation expense \| $	$ 110,000	$ 110,000	$ 295,000	$ 188,000
Reversal of stock compensation expense \| $				$ 152,000
Unrecognized compensation cost related to equity award grants \| $	$ 1,400,000		$ 1,400,000
Unrecognized compensation cost expected remaining vesting period			3 years 3 months
2018 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock exchange ratio					0.90686
Dividend yield			0.00%
Expected volatility			36.62%
Risk-free interest rate			1.04%
Expected average life			7 years 6 months
Number of stock option grants			13,454
Weighted Average Exercise Price, Granted \| $ / shares			$ 13.09
Number of restricted stock grants			0
2018 Equity Incentive Plan \| Restricted Stock \| Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares approved under the plan						133,987
2018 Equity Incentive Plan \| Stock Options \| Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares approved under the plan						334,970