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Aggregate number of common shares reserved for future issuance.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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

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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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The cash inflow from the additional capital contribution to the entity.

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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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- Definition

Discount rate from fair value on purchase date that participants pay for 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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- Definition

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

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No definition available.

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

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of shares issued during the period as a result of an employee stock purchase plan.

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STOCKHOLDERS' EQUITY AND SHARE-BASED COMPENSATION PLANS - Additional Information (Details) $ in Millions		1 Months Ended		6 Months Ended		12 Months Ended
	Oct. 05, 2018 USD ($)	Jun. 30, 2020 USD ($) shares	Jan. 31, 2020 shares	Jun. 30, 2020 USD ($) plan shares	Jun. 30, 2019 shares	Dec. 31, 2019 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, issued (in shares)		5,127,525		5,127,525		5,076,593
Number of share-based compensation plans \| plan				5
Compensation cost not yet recognized \| $		$ 9.4		$ 9.4
Period for recognition				2 years 3 months 18 days
2019 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)		250,000		250,000
Additional authorized shares approved (in shares)		500,000	600,000
2019 Equity Incentive Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)			600,540
Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)				4 years
Expiration period (in years)				10 years
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Discount rate from grant date fair market value				15.00%
Issuance of common stock - Employee Stock Purchase Plan (in shares)				9,526	4,000
Shares available for issuance under ESPP (in shares)		23,937		23,937
ESPP \| 2014 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)		55,000		55,000
Jefferies LLC
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from issuance of stock from employee stock purchase plan \| $	$ 60.0					$ 9.0
Common stock, issued (in shares)						259,115