Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Detail)

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Earnings Per Share - Computation 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, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Basic:        
Net income $ 1,357 $ 4,310 $ 1,440 $ 7,845
Less: Distributed and undistributed income (unvested restricted stock) 24 44 48 80
Net income attributable to common shareholders $ 1,333 $ 4,266 $ 1,392 $ 7,765
Denominator for basic earnings per share-weighted-average shares 14,540 14,500 14,540 14,498
Basic earnings per share - common shareholders $ 0.09 $ 0.30 $ 0.10 $ 0.54
Diluted:        
Net income $ 1,357 $ 4,310 $ 1,440 $ 7,845
Less: Distributed and undistributed income (unvested restricted stock) 24 44 48 80
Net income attributable to common shareholders $ 1,333 $ 4,266 $ 1,392 $ 7,765
Denominator for basic earnings per share-weighted-average shares 14,540 14,500 14,540 14,498
Effect of dilutive securities:        
Employee stock options 0 0 0 0
Denominator for dilutive earnings per share-weighted-average shares 14,540 14,500 14,540 14,498
Diluted earnings per share - common shareholders $ 0.09 $ 0.30 $ 0.10 $ 0.54