EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
NET (LOSS) INCOME PER COMMON SHARE—BASIC:
Net (loss) income	$ (6,116)	$ (780)	$ (10,954)	$ 5,547	$ (3,641)
Weighted average number of common shares outstanding	15,420,704	15,013,768	15,339,420	14,971,796
Basic net (loss) income per share	$ (0.40)	$ (0.05)	$ (0.71)	$ 0.37
NET (LOSS) INCOME PER COMMON SHARE-DILUTED:
Net (loss) income	$ (6,116)	$ (780)	$ (10,954)	$ 5,547
Weighted average number of common shares outstanding	15,420,704	15,013,768	15,339,420	14,971,796
Common stock equivalents:
Stock options and non-vested stock awards (in shares)				350,305
Weighted average number of common shares outstanding	15,420,704	15,013,768	15,339,420	15,322,101
Diluted net (loss) income per share	$ (0.40)	$ (0.05)	$ (0.71)	$ 0.36
Stock options and restricted stock units granted and outstanding excluded from the computation of diluted earnings per share, due to the anti-dilutive effect (in shares)			942,378

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 share based payment arrangements using the treasury stock method.

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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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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders.

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