Share-based Payment Arrangement, Number of Grantees

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

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- Definition

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

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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

Amount of tax benefit from exercise of option under share-based payment arrangement.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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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

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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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.

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No definition available.

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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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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

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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EQUITY COMPENSATION PLANS - Narrative (Details) $ in Millions		3 Months Ended
	Apr. 24, 2020 shares	Mar. 31, 2021 USD ($) shares	Mar. 31, 2020 USD ($)	Dec. 31, 2019 individual	Dec. 31, 2020 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense		$ 1.0	$ 0.9
Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense		$ 0.2	0.2
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, term		10 years
Cash received from exercise of stock option (less than)		$ 0.7	0.1
Intrinsic value of options exercised (less than)		0.3	0.1
Intrinsic value of stock options exercised, tax benefit (less than)		0.1	$ 0.1
Total unrecognized compensation cost		$ 1.7
Weighted average expected amortization period		2 years 3 months 18 days
Stock Options \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Stock Options \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		4 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost		$ 4.4
Weighted average expected amortization period		2 years 1 month 6 days
Unvested restricted stock awards (shares) \| shares		522,676
Time-Based Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested restricted stock awards (shares) \| shares		325,000			177,000
Time-Based Restricted Stock \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		2 years
Time-Based Restricted Stock \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Performance-Based Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested restricted stock awards (shares) \| shares		198,000			142,000
Stock Option Plan 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share options and restricted shares authorized (shares) \| shares	3,000,000.0
Additional shares authorized under the plan (shares) \| shares	19,720
Inducement Grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of grantees \| individual				2