XML 40 R30.htm IDEA: XBRL DOCUMENT v2.4.0.8
Earnings per Share (Detail) (USD $)
 3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Numerator:        
Net income $ 5,673,000 $ 7,208,000 $ 18,679,000 $ 14,011,000
Denominator:        
Weighted average shares of common stock outstanding 13,884,293 13,705,188 13,852,155 13,709,702
Effect of dilutive common stock equivalents $ 19,119 $ 99,024 $ 103,062 $ 56,311
Weighted average diluted common shares outstanding 13,903,412 13,804,212 13,955,217 13,766,013
EPS:        
Basic $ 0.41 $ 0.53 $ 1.35 $ 1.02
Diluted $ 0.41 $ 0.52 $ 1.34 $ 1.02