Quarterly report pursuant to Section 13 or 15(d)

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

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Computation of Basic and Diluted Earnings (Loss) Per Share (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Basic:    
Net income $ 2,787 $ 6,779
Less: Distributed loss/distributed and undistributed income (unvested restricted stock) 24 77
Net income attributable to common shareholders 2,763 6,702
Denominator for basic earnings per share-weighted-average shares 14,455 14,381
Basic earnings per share - common shareholders $ 0.19 $ 0.47
Diluted:    
Net income 2,787 6,779
Less: Distributed loss/distributed and undistributed income (unvested restricted stock) 24 77
Net income attributable to common shareholders $ 2,763 $ 6,702
Denominator for basic earnings per share-weighted-average shares 14,455 14,381
Effect of dilutive securities:    
Employee stock options 6 27
Denominator for dilutive earnings per share-weighted-average shares 14,461 14,408
Diluted earnings per share - common shareholders $ 0.19 $ 0.47