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EARNINGS PER SHARE - Calculation of Basic and Diluted Earnings per Share(Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share [Abstract]
Net income	$ 3,308	$ 678	$ 5,310	$ 3,258
Weighted average shares outstanding - basic	8,069	8,053	8,064	8,062
Dilutive effect of share-based compensation	139	83	139	76
Weighted average shares outstanding - diluted	8,208	8,136	8,203	8,138
Per share information:
Basic earnings per share (usd per share)	$ 0.41	$ 0.08	$ 0.66	$ 0.40
Diluted earnings per share (usd per share)	$ 0.40	$ 0.08	$ 0.65	$ 0.40

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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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