STOCK-BASED COMPENSATION - Restricted stock (Details) - Restricted Stock	3 Months Ended
Mar. 31, 2020 USD ($) $ / shares shares
Outstanding Restricted Stock Awards
Non-vested stock awards, beginning balance \| shares	333,766
Vested \| shares	(3,780)
Non-vested stock awards, ending balance \| shares	329,986
Unrecognized cost inclusive of directors' awards \| $	$ 1,445,000
Weighted average remaining recognition period (years)	9 months 11 days
Weighted Average Grant Price
Non-vested stock awards, beginning balance \| $ / shares	$ 10.20
Vested \| $ / shares	8.82
Non-vested stock awards, ending balance \| $ / shares	$ 10.21

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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- 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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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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