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STOCK BASED COMPENSATION PLANS - Status of Company's Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Number of Options
Outstanding, January 1, 2018	0
Granted	47,393
Outstanding, December 31, 2018	47,393	0
Vested and Exercisable, December 31, 2018	0
Weighted Average Exercise Price
Weighted Average Exercise Price, January 1, 2018	$ 0.00
Granted	36.19
Weighted Average Exercise Price, December 31, 2018	36.19	$ 0.00
Vested and Exercisable, December 31, 2018	$ 0.00
Weighted Average Remaining Contractual Life, Outstanding	9 years 1 month 6 days
Weighted Average Remaining Contractual Life, Vested and Exercisable	0 years
Aggregate Intrinsic Value, Outstanding	$ 0
Aggregate Intrinsic Value, Vested and Exercisable	$ 0
Cash received from options exercised			$ 62
Stock option
Number of Options
Outstanding, January 1, 2018	0	0
Outstanding, December 31, 2018		0	0
Weighted Average Exercise Price
Intrinsic value of options exercised	$ 0	$ 0	$ 115
Cash received from options exercised	0	0	62
Tax benefit realized from option exercised	$ 0	$ 0	$ 0

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- Definition

The aggregate cash inflow comprised of the amount received from (a) employees to acquire the entity's shares under incentive awards, including stock option exercises and restricted stock arrangements, and (b) the excess tax benefit arising from such transactions.

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Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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