XML 35 R56.htm IDEA: XBRL DOCUMENT v2.4.0.6
Earnings Per Share (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Schedule of Net income per share    
Net income $ 11,031,270 $ 10,100,325
Weighted-average shares outstanding:    
Basic 22,667,102 22,593,327
Effect of dilutive securities:    
Stock options      
Restricted stock 81,860 92,334
Diluted 22,748,962 22,685,661
Net income per basic share $ 0.49 $ 0.45
Net income per diluted share $ 0.48 $ 0.45