EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Basic earnings per share [Abstract]
Income available to common stockholders	$ 6,176	$ 5,133
Weighted average common shares outstanding (in shares)	14,626,234	13,346,375
Earnings per share (in dollars per share)	$ 0.42	$ 0.38
Diluted earnings per share [Abstract]
Income available to common stockholders	$ 6,176	$ 5,133
Weighted average common shares outstanding (in shares)	14,626,234	13,346,375
Add dilutive effects of potential additional common stock (in shares)	72,865	77,825
Weighted average common and dilutive potential common shares outstanding (in shares)	14,699,099	13,424,200
Earnings per share assuming dilution (in dollars per share)	$ 0.42	$ 0.38
Stock Options [Member]
Earnings Per Share [Abstract]
Securities not considered in computing diluted earnings per share (in shares)	72,075	132,563

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of contingently issuable shares. Contingently issuable shares are those shares that are issuable for little or no cash contingent on certain conditions being met.

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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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