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Earnings Per Share (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Earnings Per Share Details        
Weighted-average common shares outstanding (basic) 2,938,660 2,930,075 2,938,660 2,930,075
Dilutive effect of assumed exercise of stock options            
Weighted-average common shares outstanding (diluted) 2,938,660 2,930,075 2,938,660 2,930,075