STOCK-BASED COMPENSATION - Employee Stock Purchase Plan (Details) - Employee Stock Purchase Plan	12 Months Ended
Dec. 31, 2021 USD ($) $ / shares shares
STOCK-BASED COMPENSATION
Common stock reserved for issuance (in shares)	262,731
Purchase price of common stock, percent	85.00%
Offering period	6 months
Purchase period	6 months
Shares purchased for award	5,543
Weighted average price of shares purchased (in dollars per share) \| $ / shares	$ 103.62
Cash proceeds from ESPP \| $	$ 600,000
Number of shares available for issuance under the ESPP	257,188
Granted (in dollars per share) \| $ / shares	$ 42.39
Expected term (in years)	3 months 29 days
Expected dividend rate	0.00%
Expected volatility rate (percentage)	46.00%
Risk-free interest rate (percentage)	0.05%
Dividends \| $	$ 0

Share-Based Compensation Arrangement By Share-based Payment Award, Consecutive Offering Period

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Share-Based Compensation Arrangement By Share-based Payment Award, Purchase Period

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Aggregate number of common shares reserved for future issuance.

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Amount of cash inflow from issuance of shares under share-based payment arrangement. Excludes option exercised.

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The weighted average fair value at grant date for nonvested equity-based awards issued 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).

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The estimated amount of dividends to be paid to holders of the underlying shares (expected dividends) over the option's term. Dividends are taken into account because payment of dividends to shareholders reduces the fair value of the underlying shares, and option holders generally do not receive dividends.

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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.

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

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

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

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