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EMPLOYEE STOCK COMPENSATION - Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Number of Shares
Outstanding at beginning of period (in shares)	62,521
Exercised (shares)	(7,452)
Outstanding at end of period (in shares)	55,069	62,521
Exercisable at end of period (in shares)	52,821
Weighted-Average Exercise Price Per Share
Outstanding at beginning of period (in dollars per share)	$ 13.85
Exercised (in dollars per share)	13.05
Outstanding at end of period (in dollars per share)	13.96	$ 13.85
Exercisable at end of period (in dollars per share)	$ 13.97
Weighted-Average Remaining Contract Term
Outstanding	4 years	4 years 3 months 18 days
Exercised	5 years 2 months 12 days
Exercisable at end of period	3 years 10 months 24 days
Aggregated Intrinsic Value
Outstanding	$ (344)
Exercisable at end of period	$ (330)

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Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Remaining Contractual Term [Abstract]

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Share-based Compensation Arrangements by Share Based Payment Award, Options, Exercises In Period, Weighted Average Remaining Contractual Term

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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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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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Number of share options (or share units) exercised during the current period.

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